<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:36df64e4-3baa-4895-9d0b-f71400b577e6,g:63ebaa94-c31d-4bc2-876d-c62418274532-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:arcroleRef arcroleURI="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/arcrole/esma-arcrole-2018-11-21.xsd#wider-narrower"/>
  <link:roleRef roleURI="http://www.santander.com/role/BalancesConsolidados" xlink:type="simple" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#BalancesConsolidados"/>
  <link:definitionLink xlink:role="http://www.santander.com/role/BalancesConsolidados" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfFinancialPositionAbstract_47b51f18-acfd-46ad-91c8-2c01f205f3b6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfFinancialPositionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DeclaracionTable_17c61da5-658d-4ef4-8cbd-3a4f6d0ab6ce" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DeclaracionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_StatementOfFinancialPositionAbstract_47b51f18-acfd-46ad-91c8-2c01f205f3b6" xlink:to="loc_san_DeclaracionTable_17c61da5-658d-4ef4-8cbd-3a4f6d0ab6ce" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="scenario"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsAxis_17722d1b-5619-48b1-b333-8e9b6e7bbfeb" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_san_DeclaracionTable_17c61da5-658d-4ef4-8cbd-3a4f6d0ab6ce" xlink:to="loc_ifrs-full_ClassesOfFinancialAssetsAxis_17722d1b-5619-48b1-b333-8e9b6e7bbfeb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsDomain_97ea04e3-5253-497b-b1ef-bf118d6b2675" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsAxis_17722d1b-5619-48b1-b333-8e9b6e7bbfeb" xlink:to="loc_ifrs-full_ClassesOfFinancialAssetsDomain_97ea04e3-5253-497b-b1ef-bf118d6b2675" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativesMember_0bf57115-2a48-4da3-b828-41bb01d6c5a6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DerivativesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain_97ea04e3-5253-497b-b1ef-bf118d6b2675" xlink:to="loc_ifrs-full_DerivativesMember_0bf57115-2a48-4da3-b828-41bb01d6c5a6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityInvestmentsMember_7e4cb3d0-9d38-4382-865c-89b6efd1acc7" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityInvestmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain_97ea04e3-5253-497b-b1ef-bf118d6b2675" xlink:to="loc_ifrs-full_EquityInvestmentsMember_7e4cb3d0-9d38-4382-865c-89b6efd1acc7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtSecuritiesMember_f5175c81-85c7-449e-893c-dec7d5b631b5" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DebtSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain_97ea04e3-5253-497b-b1ef-bf118d6b2675" xlink:to="loc_ifrs-full_DebtSecuritiesMember_f5175c81-85c7-449e-893c-dec7d5b631b5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_PrestamosYAnticiposMember_d90237bd-8a44-460c-824d-3187ef4db65b" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_PrestamosYAnticiposMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain_97ea04e3-5253-497b-b1ef-bf118d6b2675" xlink:to="loc_san_PrestamosYAnticiposMember_d90237bd-8a44-460c-824d-3187ef4db65b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_PrestamosYAnticiposBancosCentralesMember_677a31d0-21f1-4b11-8e94-42b9c98f422b" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_PrestamosYAnticiposBancosCentralesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_san_PrestamosYAnticiposMember_d90237bd-8a44-460c-824d-3187ef4db65b" xlink:to="loc_san_PrestamosYAnticiposBancosCentralesMember_677a31d0-21f1-4b11-8e94-42b9c98f422b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_PrestamosYAnticiposEntidadesDeCreditoMember_3585f53e-7f4b-47e4-979e-f998b3821103" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_PrestamosYAnticiposEntidadesDeCreditoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_san_PrestamosYAnticiposMember_d90237bd-8a44-460c-824d-3187ef4db65b" xlink:to="loc_san_PrestamosYAnticiposEntidadesDeCreditoMember_3585f53e-7f4b-47e4-979e-f998b3821103" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_PrestamosYAnticiposClientelaMember_3f360c93-d646-429b-8da9-a609c9faf3c9" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_PrestamosYAnticiposClientelaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_san_PrestamosYAnticiposMember_d90237bd-8a44-460c-824d-3187ef4db65b" xlink:to="loc_san_PrestamosYAnticiposClientelaMember_3f360c93-d646-429b-8da9-a609c9faf3c9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentByOperatingLeaseStatusAxis_1c775f82-0d04-41e5-8ffe-d37ca03918e7" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentByOperatingLeaseStatusAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_san_DeclaracionTable_17c61da5-658d-4ef4-8cbd-3a4f6d0ab6ce" xlink:to="loc_ifrs-full_PropertyPlantAndEquipmentByOperatingLeaseStatusAxis_1c775f82-0d04-41e5-8ffe-d37ca03918e7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentByOperatingLeaseStatusDomain_629505b8-6dcb-4ba3-9ef4-1c06bf2f34f6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentByOperatingLeaseStatusDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_PropertyPlantAndEquipmentByOperatingLeaseStatusAxis_1c775f82-0d04-41e5-8ffe-d37ca03918e7" xlink:to="loc_ifrs-full_PropertyPlantAndEquipmentByOperatingLeaseStatusDomain_629505b8-6dcb-4ba3-9ef4-1c06bf2f34f6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentNotSubjectToOperatingLeasesMember_99ca82ba-41aa-4d8d-af1b-9962340d5b1b" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentNotSubjectToOperatingLeasesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_PropertyPlantAndEquipmentByOperatingLeaseStatusDomain_629505b8-6dcb-4ba3-9ef4-1c06bf2f34f6" xlink:to="loc_ifrs-full_PropertyPlantAndEquipmentNotSubjectToOperatingLeasesMember_99ca82ba-41aa-4d8d-af1b-9962340d5b1b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentSubjectToOperatingLeasesMember_e28dc5ae-0ba4-4ecc-8509-8596f7c130a3" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentSubjectToOperatingLeasesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_PropertyPlantAndEquipmentByOperatingLeaseStatusDomain_629505b8-6dcb-4ba3-9ef4-1c06bf2f34f6" xlink:to="loc_ifrs-full_PropertyPlantAndEquipmentSubjectToOperatingLeasesMember_e28dc5ae-0ba4-4ecc-8509-8596f7c130a3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis_31053cc6-9f0a-48e5-a037-13350bf52848" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialLiabilitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_san_DeclaracionTable_17c61da5-658d-4ef4-8cbd-3a4f6d0ab6ce" xlink:to="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis_31053cc6-9f0a-48e5-a037-13350bf52848" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_e6e8d7c0-629a-43d9-9eea-6bc12dbe8b67" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis_31053cc6-9f0a-48e5-a037-13350bf52848" xlink:to="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_e6e8d7c0-629a-43d9-9eea-6bc12dbe8b67" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativesMember_5b720291-a258-43aa-a385-1c26d65092b8" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DerivativesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_e6e8d7c0-629a-43d9-9eea-6bc12dbe8b67" xlink:to="loc_ifrs-full_DerivativesMember_5b720291-a258-43aa-a385-1c26d65092b8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_PosicionesCortasMember_c8bffa98-a179-44a2-8818-133cb8cb5348" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_PosicionesCortasMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_e6e8d7c0-629a-43d9-9eea-6bc12dbe8b67" xlink:to="loc_san_PosicionesCortasMember_c8bffa98-a179-44a2-8818-133cb8cb5348" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DepositosMember_e69270ac-8fa9-48ec-b58f-50a573f48571" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DepositosMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_e6e8d7c0-629a-43d9-9eea-6bc12dbe8b67" xlink:to="loc_san_DepositosMember_e69270ac-8fa9-48ec-b58f-50a573f48571" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DepositosBancosCentralesMember_17d20446-167c-42a3-a8f7-a32c3ce69587" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DepositosBancosCentralesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_san_DepositosMember_e69270ac-8fa9-48ec-b58f-50a573f48571" xlink:to="loc_san_DepositosBancosCentralesMember_17d20446-167c-42a3-a8f7-a32c3ce69587" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DepositosEntidadesDeCreditoMember_234e5f94-f767-4556-920b-e88c038f8ece" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DepositosEntidadesDeCreditoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_san_DepositosMember_e69270ac-8fa9-48ec-b58f-50a573f48571" xlink:to="loc_san_DepositosEntidadesDeCreditoMember_234e5f94-f767-4556-920b-e88c038f8ece" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DepositosClientelaMember_a0836492-e9c2-4087-8854-7c82749263b2" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DepositosClientelaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_san_DepositosMember_e69270ac-8fa9-48ec-b58f-50a573f48571" xlink:to="loc_san_DepositosClientelaMember_a0836492-e9c2-4087-8854-7c82749263b2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_InstrumentosDeDeudaMember_42a005ea-9d43-4fcc-9ee0-2e54c7efde03" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_InstrumentosDeDeudaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_e6e8d7c0-629a-43d9-9eea-6bc12dbe8b67" xlink:to="loc_san_InstrumentosDeDeudaMember_42a005ea-9d43-4fcc-9ee0-2e54c7efde03" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosPasivosFinancierosMember_1e4b1d20-dd14-4509-9e0a-5b3f817f870b" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosPasivosFinancierosMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain_e6e8d7c0-629a-43d9-9eea-6bc12dbe8b67" xlink:to="loc_san_OtrosPasivosFinancierosMember_1e4b1d20-dd14-4509-9e0a-5b3f817f870b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfProvisionsAxis_ff710246-c38f-441f-b082-643bdbcbcb80" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfProvisionsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_san_DeclaracionTable_17c61da5-658d-4ef4-8cbd-3a4f6d0ab6ce" xlink:to="loc_ifrs-full_ClassesOfProvisionsAxis_ff710246-c38f-441f-b082-643bdbcbcb80" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfOtherProvisionsDomain_d3ff116e-7b4b-4514-beeb-0216ccc4a821" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfOtherProvisionsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfProvisionsAxis_ff710246-c38f-441f-b082-643bdbcbcb80" xlink:to="loc_ifrs-full_ClassesOfOtherProvisionsDomain_d3ff116e-7b4b-4514-beeb-0216ccc4a821" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_PensionesYOtrasObligacionesDePrestacionesDefinidasPostEmpleoMember_343a8f3f-7ca5-40a5-8e0f-17d1feab1668" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_PensionesYOtrasObligacionesDePrestacionesDefinidasPostEmpleoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_d3ff116e-7b4b-4514-beeb-0216ccc4a821" xlink:to="loc_san_PensionesYOtrasObligacionesDePrestacionesDefinidasPostEmpleoMember_343a8f3f-7ca5-40a5-8e0f-17d1feab1668" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrasRetribucionesALosEmpleadosALargoPlazoMember_a5fca9ff-1350-481a-8a88-83a6404aab58" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrasRetribucionesALosEmpleadosALargoPlazoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_d3ff116e-7b4b-4514-beeb-0216ccc4a821" xlink:to="loc_san_OtrasRetribucionesALosEmpleadosALargoPlazoMember_a5fca9ff-1350-481a-8a88-83a6404aab58" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_CuestionesProcesalesYLitigiosPorImpuestosPendientesMember_effbf5a5-61ef-4e9e-ad72-d1c521c2a731" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_CuestionesProcesalesYLitigiosPorImpuestosPendientesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_d3ff116e-7b4b-4514-beeb-0216ccc4a821" xlink:to="loc_san_CuestionesProcesalesYLitigiosPorImpuestosPendientesMember_effbf5a5-61ef-4e9e-ad72-d1c521c2a731" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_CompromisosYGarantiasConcedidosMember_acfd8ecd-83c6-4b12-a437-22436c0d44ec" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_CompromisosYGarantiasConcedidosMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_d3ff116e-7b4b-4514-beeb-0216ccc4a821" xlink:to="loc_san_CompromisosYGarantiasConcedidosMember_acfd8ecd-83c6-4b12-a437-22436c0d44ec" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MiscellaneousOtherProvisionsMember_b765bf6b-6e15-49a0-9f26-d67cebd804d6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_MiscellaneousOtherProvisionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_d3ff116e-7b4b-4514-beeb-0216ccc4a821" xlink:to="loc_ifrs-full_MiscellaneousOtherProvisionsMember_b765bf6b-6e15-49a0-9f26-d67cebd804d6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis_3b47bdc2-a64c-434b-ba94-44d0524f1843" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_san_DeclaracionTable_17c61da5-658d-4ef4-8cbd-3a4f6d0ab6ce" xlink:to="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis_3b47bdc2-a64c-434b-ba94-44d0524f1843" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_3ca43bbe-cddf-47d9-9e47-bc39785c7bbf" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis_3b47bdc2-a64c-434b-ba94-44d0524f1843" xlink:to="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_3ca43bbe-cddf-47d9-9e47-bc39785c7bbf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LoanCommitmentsMember_9a017708-d730-4f30-8919-06d8dc39752a" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LoanCommitmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_3ca43bbe-cddf-47d9-9e47-bc39785c7bbf" xlink:to="loc_ifrs-full_LoanCommitmentsMember_9a017708-d730-4f30-8919-06d8dc39752a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialGuaranteeContractsMember_996674f6-f121-400e-8ef3-1c240b83baee" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialGuaranteeContractsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_3ca43bbe-cddf-47d9-9e47-bc39785c7bbf" xlink:to="loc_ifrs-full_FinancialGuaranteeContractsMember_996674f6-f121-400e-8ef3-1c240b83baee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosCompromisosConcedidosMember_3b223a74-46c1-4bf6-ad5a-de1534ced4ea" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosCompromisosConcedidosMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain_3ca43bbe-cddf-47d9-9e47-bc39785c7bbf" xlink:to="loc_san_OtrosCompromisosConcedidosMember_3b223a74-46c1-4bf6-ad5a-de1534ced4ea" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DeclaracionLineItems_1653106d-e0e6-4245-8c4a-039e290ad617" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DeclaracionLineItems"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfFinancialPositionAbstract_47b51f18-acfd-46ad-91c8-2c01f205f3b6" xlink:to="loc_san_DeclaracionLineItems_1653106d-e0e6-4245-8c4a-039e290ad617" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_san_DeclaracionLineItems_1653106d-e0e6-4245-8c4a-039e290ad617" xlink:to="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalents_14c5b59e-8e0e-429d-83c9-9ec6c62de18a" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_CashAndCashEquivalents_14c5b59e-8e0e-429d-83c9-9ec6c62de18a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading_c480544c-7505-4854-bdf3-fe7da2acf17e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading_c480544c-7505-4854-bdf3-fe7da2acf17e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue_7d7e185f-bd84-4b38-acf2-e2540c081bbc" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue_7d7e185f-bd84-4b38-acf2-e2540c081bbc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition_f68e1d3c-fb4b-4bf7-9c03-949be9f953fc" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition_f68e1d3c-fb4b-4bf7-9c03-949be9f953fc" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome_8158e911-7379-4481-9f9b-341f56735eb2" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome_8158e911-7379-4481-9f9b-341f56735eb2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtAmortisedCost_e0b8c02e-7c0f-4daa-8ca5-e924b49ba3e6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtAmortisedCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_FinancialAssetsAtAmortisedCost_e0b8c02e-7c0f-4daa-8ca5-e924b49ba3e6" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialAssetsHeldForHedging_22a5577d-0626-4e06-805d-7537d7b85a00" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DerivativeFinancialAssetsHeldForHedging"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_DerivativeFinancialAssetsHeldForHedging_22a5577d-0626-4e06-805d-7537d7b85a00" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets_87f5e789-78bd-4745-a816-7bd78b5b88f0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets_87f5e789-78bd-4745-a816-7bd78b5b88f0" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod_5a7b613d-f4ad-4ddb-8d7f-d933dc2057c3" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentAccountedForUsingEquityMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod_5a7b613d-f4ad-4ddb-8d7f-d933dc2057c3" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod_482d57ba-a12b-49d7-8032-376a2cc4cffe" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_InvestmentsInJointVenturesAccountedForUsingEquityMethod_482d57ba-a12b-49d7-8032-376a2cc4cffe" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod_bf70f73d-8c0d-42b7-81b0-2a61054c29cf" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod_bf70f73d-8c0d-42b7-81b0-2a61054c29cf" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReinsuranceContractsHeldThatAreAssets_a8234c05-5135-453a-9254-e27962d46536" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReinsuranceContractsHeldThatAreAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_ReinsuranceContractsHeldThatAreAssets_a8234c05-5135-453a-9254-e27962d46536" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ActivosTangibles_57ba0e30-952b-4dfc-a455-94200c294c45" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ActivosTangibles"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_san_ActivosTangibles_57ba0e30-952b-4dfc-a455-94200c294c45" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets_30788976-454e-4de0-a105-2317b7281dc6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets_30788976-454e-4de0-a105-2317b7281dc6" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentProperty_fbb5f2a1-6302-406e-8a30-0a2559a1bbd0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentProperty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_InvestmentProperty_fbb5f2a1-6302-406e-8a30-0a2559a1bbd0" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IntangibleAssetsAndGoodwill_7fb07042-bdcf-45df-9341-dd210ac73be8" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IntangibleAssetsAndGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_IntangibleAssetsAndGoodwill_7fb07042-bdcf-45df-9341-dd210ac73be8" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Goodwill_3226cf04-6dc8-4b15-a73e-f0abc84e14ae" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_Goodwill_3226cf04-6dc8-4b15-a73e-f0abc84e14ae" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill_e4d8cfd9-26fa-4157-88c2-952e62b3fc5f" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill_e4d8cfd9-26fa-4157-88c2-952e62b3fc5f" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ActivosPorImpuestos_adafa931-e20f-4be8-a5c2-88f6af90b2a7" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ActivosPorImpuestos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_san_ActivosPorImpuestos_adafa931-e20f-4be8-a5c2-88f6af90b2a7" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxAssets_f46f4d49-3d8f-4797-becf-ee954a20283d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_CurrentTaxAssets_f46f4d49-3d8f-4797-becf-ee954a20283d" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxAssets_38294374-982a-4c62-849e-887ed93f27cc" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_DeferredTaxAssets_38294374-982a-4c62-849e-887ed93f27cc" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherAssets_019b2d05-3386-4105-9431-a1328eb61810" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_OtherAssets_019b2d05-3386-4105-9431-a1328eb61810" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ContratosDeSegurosVinculadosAPensiones_38d6242f-7028-44af-a83b-3cd46b7d354a" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ContratosDeSegurosVinculadosAPensiones"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_san_ContratosDeSegurosVinculadosAPensiones_38d6242f-7028-44af-a83b-3cd46b7d354a" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Inventories_8c3c3856-3a4d-4436-a3aa-9fe0089e7fe6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Inventories"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_Inventories_8c3c3856-3a4d-4436-a3aa-9fe0089e7fe6" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherNonfinancialAssets_bb75d54b-a8d4-4a3b-8a12-faba3703b37f" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherNonfinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_OtherNonfinancialAssets_bb75d54b-a8d4-4a3b-8a12-faba3703b37f" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale_41f4c5b1-4903-45f0-b41d-f48625786020" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale_41f4c5b1-4903-45f0-b41d-f48625786020" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Assets_db7dde17-1570-4d4b-9d6e-84fe1808ff27" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_15b802ae-f1a9-4809-8a9a-2f9ef3fac2af" xlink:to="loc_ifrs-full_Assets_db7dde17-1570-4d4b-9d6e-84fe1808ff27" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAndLiabilitiesAbstract_6c5b3c88-81fa-43bf-bb8e-b466787b894a" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAndLiabilitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_san_DeclaracionLineItems_1653106d-e0e6-4245-8c4a-039e290ad617" xlink:to="loc_ifrs-full_EquityAndLiabilitiesAbstract_6c5b3c88-81fa-43bf-bb8e-b466787b894a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesAbstract_52100520-5f4b-49e5-a905-f66783254452" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAndLiabilitiesAbstract_6c5b3c88-81fa-43bf-bb8e-b466787b894a" xlink:to="loc_ifrs-full_LiabilitiesAbstract_52100520-5f4b-49e5-a905-f66783254452" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading_f2a0d66b-f607-4e02-8316-e6924ff101ce" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_52100520-5f4b-49e5-a905-f66783254452" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading_f2a0d66b-f607-4e02-8316-e6924ff101ce" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition_ccc5fa69-baf7-4e55-b747-2c2200f784e8" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_52100520-5f4b-49e5-a905-f66783254452" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition_ccc5fa69-baf7-4e55-b747-2c2200f784e8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtAmortisedCost_2d79e6b1-4b7c-42f0-be85-b78f8ebb847d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilitiesAtAmortisedCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_52100520-5f4b-49e5-a905-f66783254452" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtAmortisedCost_2d79e6b1-4b7c-42f0-be85-b78f8ebb847d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialLiabilitiesHeldForHedging_f8537ba2-e12b-4720-ba8c-670dd772caeb" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DerivativeFinancialLiabilitiesHeldForHedging"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_52100520-5f4b-49e5-a905-f66783254452" xlink:to="loc_ifrs-full_DerivativeFinancialLiabilitiesHeldForHedging_f8537ba2-e12b-4720-ba8c-670dd772caeb" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities_d2a752a6-af46-4abf-9665-c055bcc6e35a" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_52100520-5f4b-49e5-a905-f66783254452" xlink:to="loc_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities_d2a752a6-af46-4abf-9665-c055bcc6e35a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InsuranceContractsThatAreLiabilities_798579a0-59f7-46f6-b484-420d17c449ea" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InsuranceContractsThatAreLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_52100520-5f4b-49e5-a905-f66783254452" xlink:to="loc_ifrs-full_InsuranceContractsThatAreLiabilities_798579a0-59f7-46f6-b484-420d17c449ea" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Provisions_58f62e8a-9955-49c9-8449-9577d443ee33" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Provisions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_52100520-5f4b-49e5-a905-f66783254452" xlink:to="loc_ifrs-full_Provisions_58f62e8a-9955-49c9-8449-9577d443ee33" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_PasivosPorImpuestos_f6ec572f-87ef-4f0a-a017-61b1acd454c5" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_PasivosPorImpuestos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_52100520-5f4b-49e5-a905-f66783254452" xlink:to="loc_san_PasivosPorImpuestos_f6ec572f-87ef-4f0a-a017-61b1acd454c5" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxLiabilities_8a5a340e-5f7e-42eb-87c6-c634af62e205" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_52100520-5f4b-49e5-a905-f66783254452" xlink:to="loc_ifrs-full_CurrentTaxLiabilities_8a5a340e-5f7e-42eb-87c6-c634af62e205" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxLiabilities_a116b964-7827-4424-afcb-54d5d2523a48" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_52100520-5f4b-49e5-a905-f66783254452" xlink:to="loc_ifrs-full_DeferredTaxLiabilities_a116b964-7827-4424-afcb-54d5d2523a48" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherLiabilities_1152b1e9-de56-4d23-bab4-a04791cd4f1e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_52100520-5f4b-49e5-a905-f66783254452" xlink:to="loc_ifrs-full_OtherLiabilities_1152b1e9-de56-4d23-bab4-a04791cd4f1e" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale_16e83bbc-5e8a-4416-8db0-b67e275313e3" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_52100520-5f4b-49e5-a905-f66783254452" xlink:to="loc_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale_16e83bbc-5e8a-4416-8db0-b67e275313e3" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Liabilities_aa815be1-3a38-431b-a36c-a0e6b54c5ff3" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_52100520-5f4b-49e5-a905-f66783254452" xlink:to="loc_ifrs-full_Liabilities_aa815be1-3a38-431b-a36c-a0e6b54c5ff3" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAndLiabilitiesAbstract_6c5b3c88-81fa-43bf-bb8e-b466787b894a" xlink:to="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_PatrimonioNetoAtribuibleALosPropietariosDeLaDominanteExcluidoElOtroResultadoGlobalAcumulado_cd60e534-5092-4b68-8548-7509f6ed9366" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_PatrimonioNetoAtribuibleALosPropietariosDeLaDominanteExcluidoElOtroResultadoGlobalAcumulado"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_san_PatrimonioNetoAtribuibleALosPropietariosDeLaDominanteExcluidoElOtroResultadoGlobalAcumulado_cd60e534-5092-4b68-8548-7509f6ed9366" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssuedCapital_2265e617-d26d-4f3c-ba85-f1f725286356" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuedCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_ifrs-full_IssuedCapital_2265e617-d26d-4f3c-ba85-f1f725286356" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_CapitalDesembolsado_334b549f-9524-44a9-856f-e726fadab676" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_CapitalDesembolsado"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_san_CapitalDesembolsado_334b549f-9524-44a9-856f-e726fadab676" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_CapitalNoDesembolsadoExigido_52d0f9de-fa5c-4e11-ba8e-fd181d54331e" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_CapitalNoDesembolsadoExigido"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_san_CapitalNoDesembolsadoExigido_52d0f9de-fa5c-4e11-ba8e-fd181d54331e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SharePremium_0498de1b-9a2c-4bd5-9f21-09b838619b7b" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SharePremium"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_ifrs-full_SharePremium_0498de1b-9a2c-4bd5-9f21-09b838619b7b" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReserveOfEquityComponentOfConvertibleInstruments_8539725c-5149-4fea-93a8-fc6bedac57e1" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReserveOfEquityComponentOfConvertibleInstruments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_ifrs-full_ReserveOfEquityComponentOfConvertibleInstruments_8539725c-5149-4fea-93a8-fc6bedac57e1" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ComponenteDePatrimonioNetoDeLosInstrumentosFinancierosCompuestos_02cbf9e5-2895-48a0-96d3-c2568efeecc8" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ComponenteDePatrimonioNetoDeLosInstrumentosFinancierosCompuestos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_san_ComponenteDePatrimonioNetoDeLosInstrumentosFinancierosCompuestos_02cbf9e5-2895-48a0-96d3-c2568efeecc8" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosInstrumentosDePatrimonioEmitidos_a6b2d531-ac4a-4d4f-8616-c0c2673da814" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosInstrumentosDePatrimonioEmitidos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_san_OtrosInstrumentosDePatrimonioEmitidos_a6b2d531-ac4a-4d4f-8616-c0c2673da814" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherEquityInterest_9a084859-16f8-42b9-9de6-305ba5b40112" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherEquityInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_ifrs-full_OtherEquityInterest_9a084859-16f8-42b9-9de6-305ba5b40112" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RetainedEarningsExcludingProfitLossForReportingPeriod_dd483aea-3a0b-4bf6-929b-a89d40546f79" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RetainedEarningsExcludingProfitLossForReportingPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_ifrs-full_RetainedEarningsExcludingProfitLossForReportingPeriod_dd483aea-3a0b-4bf6-929b-a89d40546f79" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevaluationSurplus_408e9288-8372-40d6-918f-c1fa6340ba55" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevaluationSurplus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_ifrs-full_RevaluationSurplus_408e9288-8372-40d6-918f-c1fa6340ba55" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherReserves_cc7807cb-18f5-46ce-84e5-ec04989180d8" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherReserves"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_ifrs-full_OtherReserves_cc7807cb-18f5-46ce-84e5-ec04989180d8" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ReservasOPerdidasAcumuladasDeInversionesEnNegociosConjuntosYAsociadas_9ffc4311-1a69-48a2-82cb-9b028da81989" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ReservasOPerdidasAcumuladasDeInversionesEnNegociosConjuntosYAsociadas"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_san_ReservasOPerdidasAcumuladasDeInversionesEnNegociosConjuntosYAsociadas_9ffc4311-1a69-48a2-82cb-9b028da81989" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrasReservas_a3ac21b1-e256-4112-b8a1-c9ea3e3e6d70" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrasReservas"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_san_OtrasReservas_a3ac21b1-e256-4112-b8a1-c9ea3e3e6d70" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TreasuryShares_40b0e180-1a7d-460b-9a2b-1a048be6c6f8" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TreasuryShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_ifrs-full_TreasuryShares_40b0e180-1a7d-460b-9a2b-1a048be6c6f8" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ResultadoAtribuibleALosPropietariosDeLaDominante_e08d7227-eac4-4927-82b9-3e3fdeb8d4d7" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ResultadoAtribuibleALosPropietariosDeLaDominante"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_san_ResultadoAtribuibleALosPropietariosDeLaDominante_e08d7227-eac4-4927-82b9-3e3fdeb8d4d7" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DividendosACuenta_2f43260f-95e4-453e-a66e-84472a1de30f" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DividendosACuenta"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_san_DividendosACuenta_2f43260f-95e4-453e-a66e-84472a1de30f" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedOtherComprehensiveIncome_4bd21d3f-c17a-4972-92a8-b12bccccb597" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_ifrs-full_AccumulatedOtherComprehensiveIncome_4bd21d3f-c17a-4972-92a8-b12bccccb597" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtroResultadoGlobalAcumuladoElementosQueNoSeReclasificaranEnResultados_16edc31c-0272-4f3f-a12b-f08f616b176d" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtroResultadoGlobalAcumuladoElementosQueNoSeReclasificaranEnResultados"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_san_OtroResultadoGlobalAcumuladoElementosQueNoSeReclasificaranEnResultados_16edc31c-0272-4f3f-a12b-f08f616b176d" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtroResultadoGlobalAcumuladoElementosQuePuedenReclasificarseEnResultados_17ddbc4b-f812-4cdb-8860-e0957c6bdcd1" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtroResultadoGlobalAcumuladoElementosQuePuedenReclasificarseEnResultados"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_san_OtroResultadoGlobalAcumuladoElementosQuePuedenReclasificarseEnResultados_17ddbc4b-f812-4cdb-8860-e0957c6bdcd1" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncontrollingInterests_72dc7a21-ded0-457e-b388-ba2fe3ec50c0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncontrollingInterests"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_ifrs-full_NoncontrollingInterests_72dc7a21-ded0-457e-b388-ba2fe3ec50c0" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtroResultadoGlobalAcumuladoAtribuibleAParticipacionesNoDominantes_c5f48fb8-f125-4606-a7c2-be4b99e672a8" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtroResultadoGlobalAcumuladoAtribuibleAParticipacionesNoDominantes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_san_OtroResultadoGlobalAcumuladoAtribuibleAParticipacionesNoDominantes_c5f48fb8-f125-4606-a7c2-be4b99e672a8" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosElementosExcluyendoElResultadoGlobalAcumuladoParticipacionesNoDominantes_0b94331f-bb2e-4779-a81a-bd4f6ef85852" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosElementosExcluyendoElResultadoGlobalAcumuladoParticipacionesNoDominantes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_san_OtrosElementosExcluyendoElResultadoGlobalAcumuladoParticipacionesNoDominantes_0b94331f-bb2e-4779-a81a-bd4f6ef85852" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity_a5fe21b6-2707-46b8-b4b6-e2410ea1e94f" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract_bd7ebbcd-8809-446f-8703-200ee592c7f6" xlink:to="loc_ifrs-full_Equity_a5fe21b6-2707-46b8-b4b6-e2410ea1e94f" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAndLiabilities_1a7ef27a-c3a7-4e73-9851-046dacf7b922" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAndLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAndLiabilitiesAbstract_6c5b3c88-81fa-43bf-bb8e-b466787b894a" xlink:to="loc_ifrs-full_EquityAndLiabilities_1a7ef27a-c3a7-4e73-9851-046dacf7b922" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_13340f46-986b-45df-b0e7-9a7db7ff15b2" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_san_DeclaracionLineItems_1653106d-e0e6-4245-8c4a-039e290ad617" xlink:to="loc_ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_13340f46-986b-45df-b0e7-9a7db7ff15b2" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.santander.com/role/Cuentasdeperdidasygananciasconsolidadas" xlink:type="simple" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#Cuentasdeperdidasygananciasconsolidadas"/>
  <link:definitionLink xlink:role="http://www.santander.com/role/Cuentasdeperdidasygananciasconsolidadas" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeStatementAbstract_763b4b22-e636-4013-8e5c-c4fb44d76c09" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeStatementAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DeclaracionTable_86905a5a-189e-4858-9d9c-81841e3807a9" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DeclaracionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_IncomeStatementAbstract_763b4b22-e636-4013-8e5c-c4fb44d76c09" xlink:to="loc_san_DeclaracionTable_86905a5a-189e-4858-9d9c-81841e3807a9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="scenario"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_51857489-0db4-4573-9603-f4a36d9c8721" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_san_DeclaracionTable_86905a5a-189e-4858-9d9c-81841e3807a9" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_51857489-0db4-4573-9603-f4a36d9c8721" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_44aafcc0-3c1d-4470-b0c1-2bb7acff5bfe" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsAxis_51857489-0db4-4573-9603-f4a36d9c8721" xlink:to="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_44aafcc0-3c1d-4470-b0c1-2bb7acff5bfe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_dcb08a90-5450-4e76-9fc1-44183abed053" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_44aafcc0-3c1d-4470-b0c1-2bb7acff5bfe" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_dcb08a90-5450-4e76-9fc1-44183abed053" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember_571492f8-5ace-427f-838b-7abb867aa9e2" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_44aafcc0-3c1d-4470-b0c1-2bb7acff5bfe" xlink:to="loc_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember_571492f8-5ace-427f-838b-7abb867aa9e2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_IngresosPorInteresesDeOtrosActivosFinancierosMember_87b21899-3eb7-45a8-912e-852fbd9ade9a" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_IngresosPorInteresesDeOtrosActivosFinancierosMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_44aafcc0-3c1d-4470-b0c1-2bb7acff5bfe" xlink:to="loc_san_IngresosPorInteresesDeOtrosActivosFinancierosMember_87b21899-3eb7-45a8-912e-852fbd9ade9a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ActivosFinancierosReclasificadosDesdeValorRazonableConCambiosEnOtroResultadoGlobalMember_e444d914-b989-4fa7-93b8-bc74cd3d3aca" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ActivosFinancierosReclasificadosDesdeValorRazonableConCambiosEnOtroResultadoGlobalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_44aafcc0-3c1d-4470-b0c1-2bb7acff5bfe" xlink:to="loc_san_ActivosFinancierosReclasificadosDesdeValorRazonableConCambiosEnOtroResultadoGlobalMember_e444d914-b989-4fa7-93b8-bc74cd3d3aca" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ActivosFinancierosReclasificadosDesdeCosteAmortizadoMember_ba1cd14d-9191-43bd-b590-479e4928750c" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ActivosFinancierosReclasificadosDesdeCosteAmortizadoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_44aafcc0-3c1d-4470-b0c1-2bb7acff5bfe" xlink:to="loc_san_ActivosFinancierosReclasificadosDesdeCosteAmortizadoMember_ba1cd14d-9191-43bd-b590-479e4928750c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrasGananciasOPerdidasMember_1813a75a-c966-4965-a0ca-1a1b69635c3c" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrasGananciasOPerdidasMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain_44aafcc0-3c1d-4470-b0c1-2bb7acff5bfe" xlink:to="loc_san_OtrasGananciasOPerdidasMember_1813a75a-c966-4965-a0ca-1a1b69635c3c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsAndLiabilitiesAxis_7463c8a7-015b-48cd-aa8f-3b871704b49c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AssetsAndLiabilitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_san_DeclaracionTable_86905a5a-189e-4858-9d9c-81841e3807a9" xlink:to="loc_ifrs-full_AssetsAndLiabilitiesAxis_7463c8a7-015b-48cd-aa8f-3b871704b49c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsAndLiabilitiesDomain_774ede8c-01eb-4661-a8d6-0575442850a5" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AssetsAndLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_AssetsAndLiabilitiesAxis_7463c8a7-015b-48cd-aa8f-3b871704b49c" xlink:to="loc_ifrs-full_AssetsAndLiabilitiesDomain_774ede8c-01eb-4661-a8d6-0575442850a5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_RestoDeActivosYPasivosMember_845b1296-1d1b-4c2b-ae79-846cafe03042" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_RestoDeActivosYPasivosMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAndLiabilitiesDomain_774ede8c-01eb-4661-a8d6-0575442850a5" xlink:to="loc_san_RestoDeActivosYPasivosMember_845b1296-1d1b-4c2b-ae79-846cafe03042" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DeclaracionLineItems_ab721e18-a2cf-486f-90f4-8e2782c30207" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DeclaracionLineItems"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncomeStatementAbstract_763b4b22-e636-4013-8e5c-c4fb44d76c09" xlink:to="loc_san_DeclaracionLineItems_ab721e18-a2cf-486f-90f4-8e2782c30207" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_san_DeclaracionLineItems_ab721e18-a2cf-486f-90f4-8e2782c30207" xlink:to="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueFromInterest_a0c665e1-7353-4596-b2c9-fd1aef55b69d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_RevenueFromInterest_a0c665e1-7353-4596-b2c9-fd1aef55b69d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpense_dc6ae082-4770-4b28-b174-3ae258dd8926" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_InterestExpense_dc6ae082-4770-4b28-b174-3ae258dd8926" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestRevenueExpense_30120937-7e5f-4bdb-9431-645cb6bca27e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestRevenueExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_InterestRevenueExpense_30120937-7e5f-4bdb-9431-645cb6bca27e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueFromDividends_ddc256c3-9d20-4b11-8a4c-c261bf78e006" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromDividends"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_RevenueFromDividends_ddc256c3-9d20-4b11-8a4c-c261bf78e006" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_b4d530d0-b918-4696-a7f1-6374eeffada8" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_b4d530d0-b918-4696-a7f1-6374eeffada8" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FeeAndCommissionIncome_ea5fe3f1-b5b3-4a09-8984-5af8bc5fc772" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FeeAndCommissionIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_FeeAndCommissionIncome_ea5fe3f1-b5b3-4a09-8984-5af8bc5fc772" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FeeAndCommissionExpense_a9dd78e5-5c36-4eeb-ac62-d920c19ac74e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FeeAndCommissionExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_FeeAndCommissionExpense_a9dd78e5-5c36-4eeb-ac62-d920c19ac74e" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasOPerdidasAlDarDeBajaEnCuentasActivosYPasivosFinancierosNoValoradosAValorRazonableConCambiosEnResultadosNetas_cd381829-e64e-4697-bbdd-1da2a2ac32a1" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasOPerdidasAlDarDeBajaEnCuentasActivosYPasivosFinancierosNoValoradosAValorRazonableConCambiosEnResultadosNetas"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_GananciasOPerdidasAlDarDeBajaEnCuentasActivosYPasivosFinancierosNoValoradosAValorRazonableConCambiosEnResultadosNetas_cd381829-e64e-4697-bbdd-1da2a2ac32a1" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasPerdidasSobreActivosYPasivosFinancierosMantenidosParaNegociar_689c3fe9-10ed-463d-9b7b-4729cbc01814" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasPerdidasSobreActivosYPasivosFinancierosMantenidosParaNegociar"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_GananciasPerdidasSobreActivosYPasivosFinancierosMantenidosParaNegociar_689c3fe9-10ed-463d-9b7b-4729cbc01814" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue_e6e07e1a-01de-4fe7-8f6f-051083d353ea" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue_e6e07e1a-01de-4fe7-8f6f-051083d353ea" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasOPerdidasSobreActivosYPasivosFinancierosAValorRazonableConCambiosEnResultados_1648e64d-ee79-4861-8360-50e6c98b4fc5" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasOPerdidasSobreActivosYPasivosFinancierosAValorRazonableConCambiosEnResultados"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_GananciasOPerdidasSobreActivosYPasivosFinancierosAValorRazonableConCambiosEnResultados_1648e64d-ee79-4861-8360-50e6c98b4fc5" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasOPerdidasNetasDeContabilidadDeCobertura_cee3c378-d0c9-4c55-90b6-6f11ff3af42e" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasOPerdidasNetasDeContabilidadDeCobertura"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_GananciasOPerdidasNetasDeContabilidadDeCobertura_cee3c378-d0c9-4c55-90b6-6f11ff3af42e" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_ff94219c-abed-43e6-96cf-8ec291654415" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_ff94219c-abed-43e6-96cf-8ec291654415" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosIngresosDeExplotacion_a2dc8c39-ec7c-4fb1-9180-2986d1aab0fd" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosIngresosDeExplotacion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_OtrosIngresosDeExplotacion_a2dc8c39-ec7c-4fb1-9180-2986d1aab0fd" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosGastosDeExplotacion_4f0cff78-7805-4e5c-a800-ade2e92299e8" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosGastosDeExplotacion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_OtrosGastosDeExplotacion_4f0cff78-7805-4e5c-a800-ade2e92299e8" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_IngresosDeContratosDeSeguroYReaseguroReconocidosEnPerdidasYGanancias_54c2a1f4-4299-4a60-8e20-bf3fc965af32" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_IngresosDeContratosDeSeguroYReaseguroReconocidosEnPerdidasYGanancias"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_IngresosDeContratosDeSeguroYReaseguroReconocidosEnPerdidasYGanancias_54c2a1f4-4299-4a60-8e20-bf3fc965af32" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GastosDeContratosDeSeguroYReaseguroReconocidosEnPerdidasYGanancias_ee5309d7-42f7-40e7-92d4-f1b123e585c6" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GastosDeContratosDeSeguroYReaseguroReconocidosEnPerdidasYGanancias"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_GastosDeContratosDeSeguroYReaseguroReconocidosEnPerdidasYGanancias_ee5309d7-42f7-40e7-92d4-f1b123e585c6" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GrossProfit_97cdf69a-7b82-448d-a945-65e5dc360036" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GrossProfit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_GrossProfit_97cdf69a-7b82-448d-a945-65e5dc360036" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdministrativeExpense_436d89cd-a4e2-4f77-922e-e50f67042b68" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_AdministrativeExpense_436d89cd-a4e2-4f77-922e-e50f67042b68" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EmployeeBenefitsExpense_380d0fd4-fa32-4fe1-8668-9907034b9fe2" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EmployeeBenefitsExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_EmployeeBenefitsExpense_380d0fd4-fa32-4fe1-8668-9907034b9fe2" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosGastosDeAdministracion_7f85de54-2cf4-4602-be00-6eae5a90974e" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosGastosDeAdministracion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_OtrosGastosDeAdministracion_7f85de54-2cf4-4602-be00-6eae5a90974e" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepreciationAndAmortisationExpense_cb5b1fa4-3006-4741-b768-264bac59af8d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationAndAmortisationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_DepreciationAndAmortisationExpense_cb5b1fa4-3006-4741-b768-264bac59af8d" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ProvisionesYReversionDeProvisiones_fad0a300-f1ee-4bed-b5c6-0fe40678cbe7" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ProvisionesYReversionDeProvisiones"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_ProvisionesYReversionDeProvisiones_fad0a300-f1ee-4bed-b5c6-0fe40678cbe7" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9_7d72fd9e-9f6c-4c3b-be6c-f299d9cc802b" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9_7d72fd9e-9f6c-4c3b-be6c-f299d9cc802b" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DeterioroDelValorOReversionDelDeterioroDelValorDeInversionesEnNegociosConjuntosOAsociadas_7c3fce58-e35d-4435-be44-958ccb4d0b14" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DeterioroDelValorOReversionDelDeterioroDelValorDeInversionesEnNegociosConjuntosOAsociadas"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_DeterioroDelValorOReversionDelDeterioroDelValorDeInversionesEnNegociosConjuntosOAsociadas_7c3fce58-e35d-4435-be44-958ccb4d0b14" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DeterioroDelValorOReversionDelDeterioroDelValorDeActivosNoFinancieros_02c57a52-9491-4ab9-a9da-24ac262adf3a" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DeterioroDelValorOReversionDelDeterioroDelValorDeActivosNoFinancieros"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_DeterioroDelValorOReversionDelDeterioroDelValorDeActivosNoFinancieros_02c57a52-9491-4ab9-a9da-24ac262adf3a" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_PerdidaPorDeterioroOReversionDelDeterioroReconocidoEnResultadosActivosTangibles_236c35e7-61a9-49b1-a1e0-28141a9f1088" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_PerdidaPorDeterioroOReversionDelDeterioroReconocidoEnResultadosActivosTangibles"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_PerdidaPorDeterioroOReversionDelDeterioroReconocidoEnResultadosActivosTangibles_236c35e7-61a9-49b1-a1e0-28141a9f1088" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill_49119361-d94f-4550-af56-191690062cb5" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill_49119361-d94f-4550-af56-191690062cb5" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_PerdidaPorDeterioroOReversionDelDeterioroReconocidoEnResultadosOtrosActivosNoFinancierosNeto_b9f4900c-6a72-47c6-9438-6a0dd72b2f22" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_PerdidaPorDeterioroOReversionDelDeterioroReconocidoEnResultadosOtrosActivosNoFinancierosNeto"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_PerdidaPorDeterioroOReversionDelDeterioroReconocidoEnResultadosOtrosActivosNoFinancierosNeto_b9f4900c-6a72-47c6-9438-6a0dd72b2f22" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasPerdidasPorEnajenacionesDeActivosNoFinancierosNeto_866eb7d1-994a-4da4-9eb3-215c2818f871" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasPerdidasPorEnajenacionesDeActivosNoFinancierosNeto"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_GananciasPerdidasPorEnajenacionesDeActivosNoFinancierosNeto_866eb7d1-994a-4da4-9eb3-215c2818f871" xlink:type="arc" order="30"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainRecognisedInBargainPurchaseTransaction_902931fc-2654-431b-b666-5995609b6406" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainRecognisedInBargainPurchaseTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_GainRecognisedInBargainPurchaseTransaction_902931fc-2654-431b-b666-5995609b6406" xlink:type="arc" order="31"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasOPerdidasProcedentesDeActivosNoCorrientesYGruposEnajenablesDeElementosClasificadosComoMantenidosParaLaVentaNoAdmisiblesComoActividadesInterrumpidas_507e74f6-f0ce-4ed4-bef0-4c29dd58366f" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasOPerdidasProcedentesDeActivosNoCorrientesYGruposEnajenablesDeElementosClasificadosComoMantenidosParaLaVentaNoAdmisiblesComoActividadesInterrumpidas"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_san_GananciasOPerdidasProcedentesDeActivosNoCorrientesYGruposEnajenablesDeElementosClasificadosComoMantenidosParaLaVentaNoAdmisiblesComoActividadesInterrumpidas_507e74f6-f0ce-4ed4-bef0-4c29dd58366f" xlink:type="arc" order="32"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossBeforeTax_c4a480b0-b4b1-473b-8a4f-d1955dde99a0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_ProfitLossBeforeTax_c4a480b0-b4b1-473b-8a4f-d1955dde99a0" xlink:type="arc" order="33"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_17c1acfa-a7b4-4d36-a99c-ce59e3ffd29f" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_17c1acfa-a7b4-4d36-a99c-ce59e3ffd29f" xlink:type="arc" order="34"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromContinuingOperations_09c622c1-39d0-40c7-83c2-84ff0d4c487e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromContinuingOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_ProfitLossFromContinuingOperations_09c622c1-39d0-40c7-83c2-84ff0d4c487e" xlink:type="arc" order="35"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromDiscontinuedOperations_e63fbc89-4770-4800-8410-019a30833e24" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromDiscontinuedOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_ProfitLossFromDiscontinuedOperations_e63fbc89-4770-4800-8410-019a30833e24" xlink:type="arc" order="36"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss_d6581f5e-96de-41b0-a878-c73ea684c3aa" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract_9932a19d-7f78-4c13-b7d6-11632d9b1274" xlink:to="loc_ifrs-full_ProfitLoss_d6581f5e-96de-41b0-a878-c73ea684c3aa" xlink:type="arc" order="37"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToAbstract_ae308b76-7d64-4506-a60c-ee2114c5452c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_san_DeclaracionLineItems_ab721e18-a2cf-486f-90f4-8e2782c30207" xlink:to="loc_ifrs-full_ProfitLossAttributableToAbstract_ae308b76-7d64-4506-a60c-ee2114c5452c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToNoncontrollingInterests_eb1f194c-b4bb-4697-b35f-be7c2a7350ad" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToNoncontrollingInterests"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAttributableToAbstract_ae308b76-7d64-4506-a60c-ee2114c5452c" xlink:to="loc_ifrs-full_ProfitLossAttributableToNoncontrollingInterests_eb1f194c-b4bb-4697-b35f-be7c2a7350ad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent_fe53ccce-4d5f-4550-9f41-af9e492419cb" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossAttributableToOwnersOfParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAttributableToAbstract_ae308b76-7d64-4506-a60c-ee2114c5452c" xlink:to="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent_fe53ccce-4d5f-4550-9f41-af9e492419cb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EarningsPerShareAbstract_8e80a9cb-e475-423d-80b3-e483b1491aa3" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EarningsPerShareAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_san_DeclaracionLineItems_ab721e18-a2cf-486f-90f4-8e2782c30207" xlink:to="loc_ifrs-full_EarningsPerShareAbstract_8e80a9cb-e475-423d-80b3-e483b1491aa3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BasicEarningsLossPerShare_2fc95074-155e-4713-80e4-56acabff18af" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BasicEarningsLossPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EarningsPerShareAbstract_8e80a9cb-e475-423d-80b3-e483b1491aa3" xlink:to="loc_ifrs-full_BasicEarningsLossPerShare_2fc95074-155e-4713-80e4-56acabff18af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DilutedEarningsLossPerShare_18ae4795-9fc0-406a-a51f-c5337a73ef20" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DilutedEarningsLossPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EarningsPerShareAbstract_8e80a9cb-e475-423d-80b3-e483b1491aa3" xlink:to="loc_ifrs-full_DilutedEarningsLossPerShare_18ae4795-9fc0-406a-a51f-c5337a73ef20" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.santander.com/role/Estadostotalesdecambiosenelpatrimonionetoconsolidados" xlink:type="simple" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#Estadostotalesdecambiosenelpatrimonionetoconsolidados"/>
  <link:definitionLink xlink:role="http://www.santander.com/role/Estadostotalesdecambiosenelpatrimonionetoconsolidados" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityAbstract_382d97d0-48ec-412a-b082-f03a2ea42375" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfChangesInEquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityTable_97fe04c6-9885-4e02-a45d-b73434d7c61e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfChangesInEquityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_StatementOfChangesInEquityAbstract_382d97d0-48ec-412a-b082-f03a2ea42375" xlink:to="loc_ifrs-full_StatementOfChangesInEquityTable_97fe04c6-9885-4e02-a45d-b73434d7c61e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="scenario"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfEquityAxis_02688686-14dd-48cf-94a0-9208d2e794cb" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComponentsOfEquityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_StatementOfChangesInEquityTable_97fe04c6-9885-4e02-a45d-b73434d7c61e" xlink:to="loc_ifrs-full_ComponentsOfEquityAxis_02688686-14dd-48cf-94a0-9208d2e794cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfEquityDomain_7118a32b-02f9-40de-bee8-9c8a3561d8eb" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComponentsOfEquityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis_02688686-14dd-48cf-94a0-9208d2e794cb" xlink:to="loc_ifrs-full_ComponentsOfEquityDomain_7118a32b-02f9-40de-bee8-9c8a3561d8eb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssuedCapitalMember_1a521f38-6028-43b4-af0d-693bff931736" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuedCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_7118a32b-02f9-40de-bee8-9c8a3561d8eb" xlink:to="loc_ifrs-full_IssuedCapitalMember_1a521f38-6028-43b4-af0d-693bff931736" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SharePremiumMember_5721caea-815a-4637-9c04-543bea47f784" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SharePremiumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_7118a32b-02f9-40de-bee8-9c8a3561d8eb" xlink:to="loc_ifrs-full_SharePremiumMember_5721caea-815a-4637-9c04-543bea47f784" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosInstrumentosDePatrimonioEmitidosMember_06a94e40-5834-4774-b8e7-b21f23d56cb3" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosInstrumentosDePatrimonioEmitidosMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_7118a32b-02f9-40de-bee8-9c8a3561d8eb" xlink:to="loc_san_OtrosInstrumentosDePatrimonioEmitidosMember_06a94e40-5834-4774-b8e7-b21f23d56cb3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherEquityInterestMember_c99dd900-2e16-4903-b53a-6a0a7972e5df" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherEquityInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_7118a32b-02f9-40de-bee8-9c8a3561d8eb" xlink:to="loc_ifrs-full_OtherEquityInterestMember_c99dd900-2e16-4903-b53a-6a0a7972e5df" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RetainedEarningsExcludingProfitLossForReportingPeriodMember_59f2483a-f9b0-4581-acf7-be080c98807b" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RetainedEarningsExcludingProfitLossForReportingPeriodMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_7118a32b-02f9-40de-bee8-9c8a3561d8eb" xlink:to="loc_ifrs-full_RetainedEarningsExcludingProfitLossForReportingPeriodMember_59f2483a-f9b0-4581-acf7-be080c98807b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevaluationSurplusMember_31e7a37d-b676-4402-87f6-b6e2b23adf78" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevaluationSurplusMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_7118a32b-02f9-40de-bee8-9c8a3561d8eb" xlink:to="loc_ifrs-full_RevaluationSurplusMember_31e7a37d-b676-4402-87f6-b6e2b23adf78" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherReservesMember_7f96237c-6dac-49d3-9c43-30d2375eb780" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherReservesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_7118a32b-02f9-40de-bee8-9c8a3561d8eb" xlink:to="loc_ifrs-full_OtherReservesMember_7f96237c-6dac-49d3-9c43-30d2375eb780" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TreasurySharesMember_63f130ed-89fa-4ea4-9b11-94017b06ccf9" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TreasurySharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_7118a32b-02f9-40de-bee8-9c8a3561d8eb" xlink:to="loc_ifrs-full_TreasurySharesMember_63f130ed-89fa-4ea4-9b11-94017b06ccf9" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ResultadoAtribuidoALosPropietariosDeLaDominanteMember_dd9c97fc-41ff-4f49-8cf8-24ef6ffd9673" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ResultadoAtribuidoALosPropietariosDeLaDominanteMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_7118a32b-02f9-40de-bee8-9c8a3561d8eb" xlink:to="loc_san_ResultadoAtribuidoALosPropietariosDeLaDominanteMember_dd9c97fc-41ff-4f49-8cf8-24ef6ffd9673" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DividendosACuentaMember_c3f8c593-c50b-49cf-a3ea-a4b61d174570" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DividendosACuentaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_7118a32b-02f9-40de-bee8-9c8a3561d8eb" xlink:to="loc_san_DividendosACuentaMember_c3f8c593-c50b-49cf-a3ea-a4b61d174570" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedOtherComprehensiveIncomeMember_a39ee5e3-c0a4-4e8d-b66c-425639936d1d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_7118a32b-02f9-40de-bee8-9c8a3561d8eb" xlink:to="loc_ifrs-full_AccumulatedOtherComprehensiveIncomeMember_a39ee5e3-c0a4-4e8d-b66c-425639936d1d" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtroResultadoGlobalAcumuladoAtribuibleAParticipacionesNoDominantesMember_d874fbf4-e298-44d6-a7ce-33bf6da542a8" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtroResultadoGlobalAcumuladoAtribuibleAParticipacionesNoDominantesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_7118a32b-02f9-40de-bee8-9c8a3561d8eb" xlink:to="loc_san_OtroResultadoGlobalAcumuladoAtribuibleAParticipacionesNoDominantesMember_d874fbf4-e298-44d6-a7ce-33bf6da542a8" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosElementosExcluyendoElResultadoGlobalAcumuladoParticipacionesNoDominantesMember_ebb0692e-5dc2-49fb-8417-a7aea35d1ddf" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosElementosExcluyendoElResultadoGlobalAcumuladoParticipacionesNoDominantesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_7118a32b-02f9-40de-bee8-9c8a3561d8eb" xlink:to="loc_san_OtrosElementosExcluyendoElResultadoGlobalAcumuladoParticipacionesNoDominantesMember_ebb0692e-5dc2-49fb-8417-a7aea35d1ddf" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis_f3bfa360-cc2a-4708-936a-ab2d88cc3828" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_StatementOfChangesInEquityTable_97fe04c6-9885-4e02-a45d-b73434d7c61e" xlink:to="loc_ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis_f3bfa360-cc2a-4708-936a-ab2d88cc3828" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RestatedMember_cc646c89-b32f-47e1-9b7f-4737cfece040" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RestatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis_f3bfa360-cc2a-4708-936a-ab2d88cc3828" xlink:to="loc_ifrs-full_RestatedMember_cc646c89-b32f-47e1-9b7f-4737cfece040" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PreviouslyStatedMember_55a10a81-fa1f-4e90-bd09-faf2970c2f5f" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PreviouslyStatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RestatedMember_cc646c89-b32f-47e1-9b7f-4737cfece040" xlink:to="loc_ifrs-full_PreviouslyStatedMember_55a10a81-fa1f-4e90-bd09-faf2970c2f5f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseDueToChangesInAccountingPolicyAndCorrectionsOfPriorPeriodErrorsMember_6be72c69-54bc-4aa4-8372-c15128137653" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseDueToChangesInAccountingPolicyAndCorrectionsOfPriorPeriodErrorsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RestatedMember_cc646c89-b32f-47e1-9b7f-4737cfece040" xlink:to="loc_ifrs-full_IncreaseDecreaseDueToChangesInAccountingPolicyAndCorrectionsOfPriorPeriodErrorsMember_6be72c69-54bc-4aa4-8372-c15128137653" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialEffectOfCorrectionsOfAccountingErrorsMember_8f8f24ea-4d88-4e0f-8e02-e9cd73b623fb" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialEffectOfCorrectionsOfAccountingErrorsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncreaseDecreaseDueToChangesInAccountingPolicyAndCorrectionsOfPriorPeriodErrorsMember_6be72c69-54bc-4aa4-8372-c15128137653" xlink:to="loc_ifrs-full_FinancialEffectOfCorrectionsOfAccountingErrorsMember_8f8f24ea-4d88-4e0f-8e02-e9cd73b623fb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialEffectOfChangesInAccountingPolicyMember_b2451c55-f742-4c7a-8625-67da7ad94639" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialEffectOfChangesInAccountingPolicyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncreaseDecreaseDueToChangesInAccountingPolicyAndCorrectionsOfPriorPeriodErrorsMember_6be72c69-54bc-4aa4-8372-c15128137653" xlink:to="loc_ifrs-full_FinancialEffectOfChangesInAccountingPolicyMember_b2451c55-f742-4c7a-8625-67da7ad94639" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityLineItems_d265d037-8d5e-4f19-b043-d3eb5d68e5de" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfChangesInEquityLineItems"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityAbstract_382d97d0-48ec-412a-b082-f03a2ea42375" xlink:to="loc_ifrs-full_StatementOfChangesInEquityLineItems_d265d037-8d5e-4f19-b043-d3eb5d68e5de" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity_0de6d3c1-c995-4c3f-84f0-19f7559355a6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_d265d037-8d5e-4f19-b043-d3eb5d68e5de" xlink:to="loc_ifrs-full_Equity_0de6d3c1-c995-4c3f-84f0-19f7559355a6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ChangesInEquityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_d265d037-8d5e-4f19-b043-d3eb5d68e5de" xlink:to="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncome_23f22423-0e39-4296-b541-bbe8868f7cda" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_ifrs-full_ComprehensiveIncome_23f22423-0e39-4296-b541-bbe8868f7cda" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_IncrementoDecrementoPorOtrasVariacionesDelPatrimonioNeto_21cc305e-bb54-4ea5-bfc4-92ceb4a9c70c" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_IncrementoDecrementoPorOtrasVariacionesDelPatrimonioNeto"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_san_IncrementoDecrementoPorOtrasVariacionesDelPatrimonioNeto_21cc305e-bb54-4ea5-bfc4-92ceb4a9c70c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssueOfEquity_b9ccd8c7-370a-43d8-8e0c-be85a52defd7" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssueOfEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_ifrs-full_IssueOfEquity_b9ccd8c7-370a-43d8-8e0c-be85a52defd7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_EmisionDeAccionesPreferentes_c0489e60-704b-4362-80ce-5c7b44b9950f" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_EmisionDeAccionesPreferentes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_san_EmisionDeAccionesPreferentes_c0489e60-704b-4362-80ce-5c7b44b9950f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_EmisionDeOtrosInstrumentosDePatrimonio_4c769e77-16eb-4d5a-b251-c061f883254c" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_EmisionDeOtrosInstrumentosDePatrimonio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_san_EmisionDeOtrosInstrumentosDePatrimonio_4c769e77-16eb-4d5a-b251-c061f883254c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_EjercicioOVencimientoDeOtrosInstrumentosDePatrimonioEmitidos_826d2afa-dab7-4a4b-b556-37d5c91898cd" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_EjercicioOVencimientoDeOtrosInstrumentosDePatrimonioEmitidos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_san_EjercicioOVencimientoDeOtrosInstrumentosDePatrimonioEmitidos_826d2afa-dab7-4a4b-b556-37d5c91898cd" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments_0d9b0322-5fdb-4e21-9ddc-21fd6e57a5ac" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments_0d9b0322-5fdb-4e21-9ddc-21fd6e57a5ac" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReductionOfIssuedCapital_4ecbe4d6-66db-400b-8b0a-e3e341108232" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReductionOfIssuedCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_ifrs-full_ReductionOfIssuedCapital_4ecbe4d6-66db-400b-8b0a-e3e341108232" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaid_7219ac12-cbcf-4174-a675-823d53ef46a0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_ifrs-full_DividendsPaid_7219ac12-cbcf-4174-a675-823d53ef46a0" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfTreasuryShares_2f13c2fd-88f4-4842-ac3c-9ad21238a6ad" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfTreasuryShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_ifrs-full_PurchaseOfTreasuryShares_2f13c2fd-88f4-4842-ac3c-9ad21238a6ad" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CancellationOfTreasuryShares_9ac010ab-b0b9-40e4-a41b-411933fb4cdd" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CancellationOfTreasuryShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_ifrs-full_CancellationOfTreasuryShares_9ac010ab-b0b9-40e4-a41b-411933fb4cdd" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ReclasificacionDeInstrumentosFinancierosDelPatrimonioNetoAlPasivo_6e0a8d6e-6a86-4507-9fa0-144a59f0dd7a" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ReclasificacionDeInstrumentosFinancierosDelPatrimonioNetoAlPasivo"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_san_ReclasificacionDeInstrumentosFinancierosDelPatrimonioNetoAlPasivo_6e0a8d6e-6a86-4507-9fa0-144a59f0dd7a" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ReclasificacionDeInstrumentosFinancierosDelPasivoAlPatrimonioNeto_8bf25420-82ac-4173-9447-56c56e484e55" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ReclasificacionDeInstrumentosFinancierosDelPasivoAlPatrimonioNeto"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_san_ReclasificacionDeInstrumentosFinancierosDelPasivoAlPatrimonioNeto_8bf25420-82ac-4173-9447-56c56e484e55" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_TransferenciasEntreComponentesDelPatrimonioNeto_042f78cd-a6c5-445a-b566-002f1a175f80" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_TransferenciasEntreComponentesDelPatrimonioNeto"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_san_TransferenciasEntreComponentesDelPatrimonioNeto_042f78cd-a6c5-445a-b566-002f1a175f80" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary_aff4727f-6c39-4718-959c-451ebbf4ada4" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary_aff4727f-6c39-4718-959c-451ebbf4ada4" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_b483db16-7dc1-4aa5-a777-e6913c39fd73" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_b483db16-7dc1-4aa5-a777-e6913c39fd73" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_55b7ceb0-7e4f-400e-ace1-b20416b81fb5" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_fe1c52bb-1db3-4008-8088-cc67516e4f76" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_55b7ceb0-7e4f-400e-ace1-b20416b81fb5" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity_1a04176f-08ac-4920-9309-f60071b18a72" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.santander.com/role/BalancesConsolidadosParenthetical" xlink:type="simple" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#BalancesConsolidadosParenthetical"/>
  <link:definitionLink xlink:role="http://www.santander.com/role/BalancesConsolidadosParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfFinancialPositionAbstract_e0c791d0-4af8-43d1-b6dc-099a8163b15d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfFinancialPositionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DeclaracionTable_381955a8-843d-446f-acc0-27ebb79bd1a8" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DeclaracionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_StatementOfFinancialPositionAbstract_e0c791d0-4af8-43d1-b6dc-099a8163b15d" xlink:to="loc_san_DeclaracionTable_381955a8-843d-446f-acc0-27ebb79bd1a8" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="scenario"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_cdefd942-7c78-4ff4-82b4-5c2c23d11d0e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_san_DeclaracionTable_381955a8-843d-446f-acc0-27ebb79bd1a8" xlink:to="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_cdefd942-7c78-4ff4-82b4-5c2c23d11d0e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_3411a003-2022-4134-ba39-155a81b416ef" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_cdefd942-7c78-4ff4-82b4-5c2c23d11d0e" xlink:to="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_3411a003-2022-4134-ba39-155a81b416ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember_d73d0077-955b-4030-82a7-1bb6173025d5" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_3411a003-2022-4134-ba39-155a81b416ef" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember_d73d0077-955b-4030-82a7-1bb6173025d5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember_efd76dce-a095-4023-9dba-e564c2ab42e0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_3411a003-2022-4134-ba39-155a81b416ef" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember_efd76dce-a095-4023-9dba-e564c2ab42e0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DeclaracionLineItems_6511a5a0-3ab4-476d-bb31-5ba5f46431a6" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DeclaracionLineItems"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfFinancialPositionAbstract_e0c791d0-4af8-43d1-b6dc-099a8163b15d" xlink:to="loc_san_DeclaracionLineItems_6511a5a0-3ab4-476d-bb31-5ba5f46431a6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SubordinatedLiabilities_a7d66b4d-831b-46c9-ae2c-033d30f5184e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SubordinatedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_san_DeclaracionLineItems_6511a5a0-3ab4-476d-bb31-5ba5f46431a6" xlink:to="loc_ifrs-full_SubordinatedLiabilities_a7d66b4d-831b-46c9-ae2c-033d30f5184e" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.santander.com/role/CuentasdeperdidasygananciasconsolidadasParenthetical" xlink:type="simple" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#CuentasdeperdidasygananciasconsolidadasParenthetical"/>
  <link:definitionLink xlink:role="http://www.santander.com/role/CuentasdeperdidasygananciasconsolidadasParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeStatementAbstract_5f372059-3d9a-4d13-8364-c078152f3def" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeStatementAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DeclaracionTable_3aa705da-ce49-4e95-91a0-99aa02f183cb" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DeclaracionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_IncomeStatementAbstract_5f372059-3d9a-4d13-8364-c078152f3def" xlink:to="loc_san_DeclaracionTable_3aa705da-ce49-4e95-91a0-99aa02f183cb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="scenario"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GeographicalAreasAxis_7355f313-8fd3-4c62-b937-6abb1abf0db8" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeographicalAreasAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_san_DeclaracionTable_3aa705da-ce49-4e95-91a0-99aa02f183cb" xlink:to="loc_ifrs-full_GeographicalAreasAxis_7355f313-8fd3-4c62-b937-6abb1abf0db8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GeographicalAreasDomain_72004017-91c5-47c4-a5f7-619d96f23c0d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeographicalAreasDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_GeographicalAreasAxis_7355f313-8fd3-4c62-b937-6abb1abf0db8" xlink:to="loc_ifrs-full_GeographicalAreasDomain_72004017-91c5-47c4-a5f7-619d96f23c0d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ArgentinaEconomiaHiperinflacionariaMember_66363c60-c092-48bf-b58c-fa0c817da66b" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ArgentinaEconomiaHiperinflacionariaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_GeographicalAreasDomain_72004017-91c5-47c4-a5f7-619d96f23c0d" xlink:to="loc_san_ArgentinaEconomiaHiperinflacionariaMember_66363c60-c092-48bf-b58c-fa0c817da66b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DeclaracionLineItems_7deab43b-e82c-4a25-bfda-7b61e6382817" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DeclaracionLineItems"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncomeStatementAbstract_5f372059-3d9a-4d13-8364-c078152f3def" xlink:to="loc_san_DeclaracionLineItems_7deab43b-e82c-4a25-bfda-7b61e6382817" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnNetMonetaryPosition_31b15ef6-d06a-42e4-a218-97d595fa10e9" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnNetMonetaryPosition"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_san_DeclaracionLineItems_7deab43b-e82c-4a25-bfda-7b61e6382817" xlink:to="loc_ifrs-full_GainsLossesOnNetMonetaryPosition_31b15ef6-d06a-42e4-a218-97d595fa10e9" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="https://www.esma.europa.eu/xbrl/role/cor/esef_role-999999" xlink:type="simple" xlink:href="https://www.esma.europa.eu/taxonomy/2024-03-27/esef_cor.xsd#esef_role-999999"/>
  <link:definitionLink xlink:role="https://www.esma.europa.eu/xbrl/role/cor/esef_role-999999" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:href="https://www.esma.europa.eu/taxonomy/2024-03-27/esef_cor.xsd#esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss_767d838c-6ce4-4f60-a6f2-b06f592e8e1cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProfitLoss_767d838c-6ce4-4f60-a6f2-b06f592e8e1cNotDimensionallyQualified" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncome_5893e722-e0c9-4feb-8527-3e39befdac47NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncome_5893e722-e0c9-4feb-8527-3e39befdac47NotDimensionallyQualified" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_aa8d7e9c-1664-4979-939c-08e468d5d5fdNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_aa8d7e9c-1664-4979-939c-08e468d5d5fdNotDimensionallyQualified" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_000f9dce-8528-46d1-a2bf-8a848925fa0dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_000f9dce-8528-46d1-a2bf-8a848925fa0dNotDimensionallyQualified" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ActivosNoCorrientesMantenidosParaLaVentaQueNoSeReclasificaranAResultadosAntesDeImpuestos_fc24e900-f2cd-4b27-a14d-d9b84168d9c8NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ActivosNoCorrientesMantenidosParaLaVentaQueNoSeReclasificaranAResultadosAntesDeImpuestos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_ActivosNoCorrientesMantenidosParaLaVentaQueNoSeReclasificaranAResultadosAntesDeImpuestos_fc24e900-f2cd-4b27-a14d-d9b84168d9c8NotDimensionallyQualified" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax_5acadef6-4974-41dc-8644-c7298935deeaNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax_5acadef6-4974-41dc-8644-c7298935deeaNotDimensionallyQualified" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments_76536b67-296c-4ff2-929f-a6ca7589836cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments_76536b67-296c-4ff2-929f-a6ca7589836cNotDimensionallyQualified" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstruments_eb8b2e2c-bce4-43a9-aea9-00f8381d214cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstruments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstruments_eb8b2e2c-bce4-43a9-aea9-00f8381d214cNotDimensionallyQualified" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_CambiosDelValorRazonableDeLosInstrumentosDePatrimonioValoradosAValorRazonableConCambiosEnOtroResultadoGlobalElementoCubierto_0e17a102-7e86-4bea-b529-d3ac755a5022NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_CambiosDelValorRazonableDeLosInstrumentosDePatrimonioValoradosAValorRazonableConCambiosEnOtroResultadoGlobalElementoCubierto"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_CambiosDelValorRazonableDeLosInstrumentosDePatrimonioValoradosAValorRazonableConCambiosEnOtroResultadoGlobalElementoCubierto_0e17a102-7e86-4bea-b529-d3ac755a5022NotDimensionallyQualified" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_CambiosDelValorRazonableDeLosInstrumentosDePatrimonioValoradosAValorRazonableConCambiosEnOtroResultadoGlobalInstrumentoDeCobertura_3c48f395-78cd-43ba-b0d5-ebe61488b811NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_CambiosDelValorRazonableDeLosInstrumentosDePatrimonioValoradosAValorRazonableConCambiosEnOtroResultadoGlobalInstrumentoDeCobertura"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_CambiosDelValorRazonableDeLosInstrumentosDePatrimonioValoradosAValorRazonableConCambiosEnOtroResultadoGlobalInstrumentoDeCobertura_3c48f395-78cd-43ba-b0d5-ebe61488b811NotDimensionallyQualified" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability_7a8dbc65-bd94-4d9a-8ac6-774a6e07ea29NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability_7a8dbc65-bd94-4d9a-8ac6-774a6e07ea29NotDimensionallyQualified" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss_fea81e3a-6c11-4051-85e3-5817107bbe19NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss_fea81e3a-6c11-4051-85e3-5817107bbe19NotDimensionallyQualified" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_f58393a4-693f-447f-8fdc-65123c1e1622NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_f58393a4-693f-447f-8fdc-65123c1e1622NotDimensionallyQualified" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxHedgesOfNetInvestmentsInForeignOperations_8b795e04-e391-486d-babc-2a4634f89964NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxHedgesOfNetInvestmentsInForeignOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxHedgesOfNetInvestmentsInForeignOperations_8b795e04-e391-486d-babc-2a4634f89964NotDimensionallyQualified" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax_6a1e6153-d21a-42b3-83e8-9c0835e8fb83NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax_6a1e6153-d21a-42b3-83e8-9c0835e8fb83NotDimensionallyQualified" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax_ff90f348-221d-4fbf-93db-869784b20f73NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax_ff90f348-221d-4fbf-93db-869784b20f73NotDimensionallyQualified" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosAjustesPorReclasificacionEnCoberturasDeInversionesNetasEnOperacionesEnElExtranjeroAntesDeImpuestos_d81727d2-262b-4c43-b378-24a1fb2a23b6NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosAjustesPorReclasificacionEnCoberturasDeInversionesNetasEnOperacionesEnElExtranjeroAntesDeImpuestos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_OtrosAjustesPorReclasificacionEnCoberturasDeInversionesNetasEnOperacionesEnElExtranjeroAntesDeImpuestos_d81727d2-262b-4c43-b378-24a1fb2a23b6NotDimensionallyQualified" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation_c542cd18-2177-4faa-9d59-4ee10775876fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation_c542cd18-2177-4faa-9d59-4ee10775876fNotDimensionallyQualified" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax_acfbb4f4-e4d9-40b9-b4f7-f596d886ad0cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax_acfbb4f4-e4d9-40b9-b4f7-f596d886ad0cNotDimensionallyQualified" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationBeforeTax_04893854-3788-4a64-9c9c-587f8ba557f8NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationBeforeTax_04893854-3788-4a64-9c9c-587f8ba557f8NotDimensionallyQualified" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosAjustesPorReclasificacionPorDiferenciasDeCambioPorConversionAntesDeImpuestos_2c8d096d-38c2-4590-931b-f743bd403811NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosAjustesPorReclasificacionPorDiferenciasDeCambioPorConversionAntesDeImpuestos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_OtrosAjustesPorReclasificacionPorDiferenciasDeCambioPorConversionAntesDeImpuestos_2c8d096d-38c2-4590-931b-f743bd403811NotDimensionallyQualified" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxCashFlowHedges_ca96ea14-cc4f-44f7-bc26-dbd70decce17NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxCashFlowHedges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxCashFlowHedges_ca96ea14-cc4f-44f7-bc26-dbd70decce17NotDimensionallyQualified" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax_ca179fa7-ae0a-4220-beda-c1b29f46e60bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax_ca179fa7-ae0a-4220-beda-c1b29f46e60bNotDimensionallyQualified" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax_e90dc763-7907-4c33-baa8-06c11d298715NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax_e90dc763-7907-4c33-baa8-06c11d298715NotDimensionallyQualified" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ImporteTransferidoEnLibrosInicialDeLosElementosCubiertosAntesDeImpuestos_3fd1c287-f43a-43f7-ae27-10d143ab23eeNotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ImporteTransferidoEnLibrosInicialDeLosElementosCubiertosAntesDeImpuestos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_ImporteTransferidoEnLibrosInicialDeLosElementosCubiertosAntesDeImpuestos_3fd1c287-f43a-43f7-ae27-10d143ab23eeNotDimensionallyQualified" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosAjustesPorReclasificacionEnCoberturasDeFlujoDeEfectivoAntesDeImpuestos_7d3435d7-5a98-43f4-85a6-ee663802eb2aNotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosAjustesPorReclasificacionEnCoberturasDeFlujoDeEfectivoAntesDeImpuestos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_OtrosAjustesPorReclasificacionEnCoberturasDeFlujoDeEfectivoAntesDeImpuestos_7d3435d7-5a98-43f4-85a6-ee663802eb2aNotDimensionallyQualified" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_InstrumentosDeCoberturaElementosNoDesignadosOtroResultadoGlobalAntesDeImpuestos_5254d124-e8b2-421d-a139-e8fb1bdfbeffNotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_InstrumentosDeCoberturaElementosNoDesignadosOtroResultadoGlobalAntesDeImpuestos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_InstrumentosDeCoberturaElementosNoDesignadosOtroResultadoGlobalAntesDeImpuestos_5254d124-e8b2-421d-a139-e8fb1bdfbeffNotDimensionallyQualified" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasOPerdidasDeValorContabilizadasEnElPatrimonioNetoInstrumentosDeCoberturaElementosNoDesignados_1000e36a-384c-40ff-86b4-2f8aeff25545NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasOPerdidasDeValorContabilizadasEnElPatrimonioNetoInstrumentosDeCoberturaElementosNoDesignados"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_GananciasOPerdidasDeValorContabilizadasEnElPatrimonioNetoInstrumentosDeCoberturaElementosNoDesignados_1000e36a-384c-40ff-86b4-2f8aeff25545NotDimensionallyQualified" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_TransferidoAResultadosInstrumentosDeCoberturaElementosNoDesignados_8a470fcf-47f1-4289-b4cd-5fae561c67aeNotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_TransferidoAResultadosInstrumentosDeCoberturaElementosNoDesignados"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_TransferidoAResultadosInstrumentosDeCoberturaElementosNoDesignados_8a470fcf-47f1-4289-b4cd-5fae561c67aeNotDimensionallyQualified" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrasReclasificacionesInstrumentosDeCoberturaElementosNoDesignados_6a913b25-cf0d-49ba-a97a-c83598ae05e5NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrasReclasificacionesInstrumentosDeCoberturaElementosNoDesignados"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_OtrasReclasificacionesInstrumentosDeCoberturaElementosNoDesignados_6a913b25-cf0d-49ba-a97a-c83598ae05e5NotDimensionallyQualified" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_e844aee8-f3ed-4de5-a91c-32fc6b7c58e7NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_e844aee8-f3ed-4de5-a91c-32fc6b7c58e7NotDimensionallyQualified" xlink:type="arc" order="30"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax_8acb4874-df8e-4608-9336-b9a685afa497NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax_8acb4874-df8e-4608-9336-b9a685afa497NotDimensionallyQualified" xlink:type="arc" order="31"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax_12ee8840-a66a-42e9-b239-170e210d45b9NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax_12ee8840-a66a-42e9-b239-170e210d45b9NotDimensionallyQualified" xlink:type="arc" order="32"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrasReclasificacionesInstrumentosDeDeudaAValorRazonableConCambiosEnOtroResultadoGlobal_ceabbe7b-fc0c-461c-a823-ddce55ca0644NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrasReclasificacionesInstrumentosDeDeudaAValorRazonableConCambiosEnOtroResultadoGlobal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_OtrasReclasificacionesInstrumentosDeDeudaAValorRazonableConCambiosEnOtroResultadoGlobal_ceabbe7b-fc0c-461c-a823-ddce55ca0644NotDimensionallyQualified" xlink:type="arc" order="33"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtroResultadoGlobalAntesDeImpuestosActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVenta_0592a7ae-2951-4d4c-97b1-b36fa0e99153NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtroResultadoGlobalAntesDeImpuestosActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVenta"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_OtroResultadoGlobalAntesDeImpuestosActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVenta_0592a7ae-2951-4d4c-97b1-b36fa0e99153NotDimensionallyQualified" xlink:type="arc" order="34"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasPerdidasDeValorContabilizadasEnElPatrimonioNetoActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos_7a9e91e2-b807-45c8-8545-5e3b0479b944NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasPerdidasDeValorContabilizadasEnElPatrimonioNetoActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_GananciasPerdidasDeValorContabilizadasEnElPatrimonioNetoActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos_7a9e91e2-b807-45c8-8545-5e3b0479b944NotDimensionallyQualified" xlink:type="arc" order="35"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_TransferidosAResultadosActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos_238bbe86-9a21-44ef-9483-e951c33a7576NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_TransferidosAResultadosActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_TransferidosAResultadosActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos_238bbe86-9a21-44ef-9483-e951c33a7576NotDimensionallyQualified" xlink:type="arc" order="36"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrasReclasificacionesActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos_3f0f3c6c-aa52-4f88-a653-842ad469b6baNotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrasReclasificacionesActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_OtrasReclasificacionesActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos_3f0f3c6c-aa52-4f88-a653-842ad469b6baNotDimensionallyQualified" xlink:type="arc" order="37"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax_ec42b003-bdd9-4d2c-9375-5dccca0556b5NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax_ec42b003-bdd9-4d2c-9375-5dccca0556b5NotDimensionallyQualified" xlink:type="arc" order="38"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss_34adaac1-98ad-40c6-adf7-4bb499d86031NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss_34adaac1-98ad-40c6-adf7-4bb499d86031NotDimensionallyQualified" xlink:type="arc" order="39"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncome_6104bbd5-7373-475c-b01f-99067c9b27c7NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ComprehensiveIncome_6104bbd5-7373-475c-b01f-99067c9b27c7NotDimensionallyQualified" xlink:type="arc" order="40"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests_7ee0e5b1-6c08-4776-b241-644319cf6f47NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests_7ee0e5b1-6c08-4776-b241-644319cf6f47NotDimensionallyQualified" xlink:type="arc" order="41"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_9e1d5900-596f-4742-9663-3a131b684202NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_9e1d5900-596f-4742-9663-3a131b684202NotDimensionallyQualified" xlink:type="arc" order="42"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities_51c6f598-4efb-45a7-93e2-41e17c80f632NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities_51c6f598-4efb-45a7-93e2-41e17c80f632NotDimensionallyQualified" xlink:type="arc" order="43"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital_20a93022-eb72-448f-b696-d20be00a06deNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital_20a93022-eb72-448f-b696-d20be00a06deNotDimensionallyQualified" xlink:type="arc" order="44"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense_5e30231d-d65a-4663-9c34-25fe78c2b772NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense_5e30231d-d65a-4663-9c34-25fe78c2b772NotDimensionallyQualified" xlink:type="arc" order="45"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherAdjustmentsForNoncashItems_ed0091f1-1d66-4a36-b049-8cce57d0a2a8NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherAdjustmentsForNoncashItems"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherAdjustmentsForNoncashItems_ed0091f1-1d66-4a36-b049-8cce57d0a2a8NotDimensionallyQualified" xlink:type="arc" order="46"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_AumentoDisminucionNetaDeLosActivosDeExplotacion_a2078c64-fda0-4924-9809-fdbe955a7d12NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_AumentoDisminucionNetaDeLosActivosDeExplotacion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_AumentoDisminucionNetaDeLosActivosDeExplotacion_a2078c64-fda0-4924-9809-fdbe955a7d12NotDimensionallyQualified" xlink:type="arc" order="47"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading_9bc62a72-a9c9-43e8-8de3-99839fefa084NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading_9bc62a72-a9c9-43e8-8de3-99839fefa084NotDimensionallyQualified" xlink:type="arc" order="48"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_AumentoDisminucionNetaDeLosActivosDeExplotacionActivosFinancierosNoDestinadosANegociacionValoradosObligatoriamenteAValorRazonableConCambiosEnResultados_f1ff31fc-9848-4dd9-8e32-63b1fce5a605NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_AumentoDisminucionNetaDeLosActivosDeExplotacionActivosFinancierosNoDestinadosANegociacionValoradosObligatoriamenteAValorRazonableConCambiosEnResultados"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_AumentoDisminucionNetaDeLosActivosDeExplotacionActivosFinancierosNoDestinadosANegociacionValoradosObligatoriamenteAValorRazonableConCambiosEnResultados_f1ff31fc-9848-4dd9-8e32-63b1fce5a605NotDimensionallyQualified" xlink:type="arc" order="49"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsMeasuredAtFairValueThroughProfitOrLoss_628135dd-eefc-4909-929b-4e3b228d719dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsMeasuredAtFairValueThroughProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsMeasuredAtFairValueThroughProfitOrLoss_628135dd-eefc-4909-929b-4e3b228d719dNotDimensionallyQualified" xlink:type="arc" order="50"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_ca3881b1-452f-4bd9-81a6-cc26e18d1c9eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_ca3881b1-452f-4bd9-81a6-cc26e18d1c9eNotDimensionallyQualified" xlink:type="arc" order="51"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsMeasuredAtAmortisedCost_124f40a3-e95b-425b-ae9e-fffe98ba0ac7NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsMeasuredAtAmortisedCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsMeasuredAtAmortisedCost_124f40a3-e95b-425b-ae9e-fffe98ba0ac7NotDimensionallyQualified" xlink:type="arc" order="52"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets_16e5c4bf-239e-492f-955d-755f4acedd23NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets_16e5c4bf-239e-492f-955d-755f4acedd23NotDimensionallyQualified" xlink:type="arc" order="53"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_AumentoDisminucionNetaDeLosPasivosDeExplotacion_a6292831-ebe0-4145-ba95-2da2f9354c35NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_AumentoDisminucionNetaDeLosPasivosDeExplotacion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_AumentoDisminucionNetaDeLosPasivosDeExplotacion_a6292831-ebe0-4145-ba95-2da2f9354c35NotDimensionallyQualified" xlink:type="arc" order="54"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading_dbbc1dd2-44f2-4256-93b2-5443c85b5a70NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading_dbbc1dd2-44f2-4256-93b2-5443c85b5a70NotDimensionallyQualified" xlink:type="arc" order="55"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesMeasuredAtFairValueThroughProfitOrLoss_4b103864-a3e3-4929-8024-ce190e3e8089NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesMeasuredAtFairValueThroughProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesMeasuredAtFairValueThroughProfitOrLoss_4b103864-a3e3-4929-8024-ce190e3e8089NotDimensionallyQualified" xlink:type="arc" order="56"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesMeasuredAtAmortisedCost_00108de3-180f-4964-8506-75a9b38189afNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesMeasuredAtAmortisedCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesMeasuredAtAmortisedCost_00108de3-180f-4964-8506-75a9b38189afNotDimensionallyQualified" xlink:type="arc" order="57"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities_cc1775dc-4ebd-40b0-8c0b-a4f49a597086NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities_cc1775dc-4ebd-40b0-8c0b-a4f49a597086NotDimensionallyQualified" xlink:type="arc" order="58"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_28e422d4-fa91-4054-9beb-2bd9b734aae1NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_28e422d4-fa91-4054-9beb-2bd9b734aae1NotDimensionallyQualified" xlink:type="arc" order="59"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_e9e92da5-c9a2-4588-8f01-8b38084f3c9fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_e9e92da5-c9a2-4588-8f01-8b38084f3c9fNotDimensionallyQualified" xlink:type="arc" order="60"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OutflowsOfCashFromInvestingActivities_30851976-59b6-4d92-89ea-406890090899NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OutflowsOfCashFromInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OutflowsOfCashFromInvestingActivities_30851976-59b6-4d92-89ea-406890090899NotDimensionallyQualified" xlink:type="arc" order="61"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_2d939658-0794-4786-a7d1-d0b777be7e0bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_2d939658-0794-4786-a7d1-d0b777be7e0bNotDimensionallyQualified" xlink:type="arc" order="62"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities_dc1d437d-a4c8-43ee-ad7a-ae77977d104eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities_dc1d437d-a4c8-43ee-ad7a-ae77977d104eNotDimensionallyQualified" xlink:type="arc" order="63"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod_09fa1c5d-0e7c-4967-9d18-2283696e1957NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod_09fa1c5d-0e7c-4967-9d18-2283696e1957NotDimensionallyQualified" xlink:type="arc" order="64"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_4db10d20-c9ba-4383-a3f3-c8782a1e0990NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_4db10d20-c9ba-4383-a3f3-c8782a1e0990NotDimensionallyQualified" xlink:type="arc" order="65"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_AdquisicionActivosNoCorrientesYPasivosQueSeHanClasificadoComoMantenidosParaLaVenta_52fdb8c9-d8f6-4b3d-8b07-5589004d8ef9NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_AdquisicionActivosNoCorrientesYPasivosQueSeHanClasificadoComoMantenidosParaLaVenta"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_AdquisicionActivosNoCorrientesYPasivosQueSeHanClasificadoComoMantenidosParaLaVenta_52fdb8c9-d8f6-4b3d-8b07-5589004d8ef9NotDimensionallyQualified" xlink:type="arc" order="66"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosPagosRelacionadosConActividadesDeInversion_c3efedb0-459c-4615-8636-5c108b845d58NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosPagosRelacionadosConActividadesDeInversion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_OtrosPagosRelacionadosConActividadesDeInversion_c3efedb0-459c-4615-8636-5c108b845d58NotDimensionallyQualified" xlink:type="arc" order="67"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InflowsOfCashFromInvestingActivities_066034ec-2a02-49cc-8aa3-4f4dceacff7aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InflowsOfCashFromInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_InflowsOfCashFromInvestingActivities_066034ec-2a02-49cc-8aa3-4f4dceacff7aNotDimensionallyQualified" xlink:type="arc" order="68"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_5c8dd500-b6c1-499b-be82-13897016c4e1NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_5c8dd500-b6c1-499b-be82-13897016c4e1NotDimensionallyQualified" xlink:type="arc" order="69"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOfIntangibleAssetsClassifiedAsInvestingActivities_a1a87ed9-06a3-4803-b8cb-7e81bda7346aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromSalesOfIntangibleAssetsClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProceedsFromSalesOfIntangibleAssetsClassifiedAsInvestingActivities_a1a87ed9-06a3-4803-b8cb-7e81bda7346aNotDimensionallyQualified" xlink:type="arc" order="70"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod_dacc817c-602b-4df8-a1fc-62bee4d8f786NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod_dacc817c-602b-4df8-a1fc-62bee4d8f786NotDimensionallyQualified" xlink:type="arc" order="71"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_4a2946e9-c9c1-405e-a00d-0bdecf278983NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_4a2946e9-c9c1-405e-a00d-0bdecf278983NotDimensionallyQualified" xlink:type="arc" order="72"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations_ebc61859-3e00-4d35-92f8-02a59fa386eeNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations_ebc61859-3e00-4d35-92f8-02a59fa386eeNotDimensionallyQualified" xlink:type="arc" order="73"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosCobrosRelacionadosConActividadesDeInversion_56c29444-e048-45ed-9edf-8f184e076f10NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosCobrosRelacionadosConActividadesDeInversion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_OtrosCobrosRelacionadosConActividadesDeInversion_56c29444-e048-45ed-9edf-8f184e076f10NotDimensionallyQualified" xlink:type="arc" order="74"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_c516fc1c-92a6-4104-b2f6-14962c568aa5NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_c516fc1c-92a6-4104-b2f6-14962c568aa5NotDimensionallyQualified" xlink:type="arc" order="75"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_SalidasDeEfectivoDeActividadesDeFinanciacion_7c09c646-885a-43e6-a38f-3c2899590e31NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_SalidasDeEfectivoDeActividadesDeFinanciacion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_SalidasDeEfectivoDeActividadesDeFinanciacion_7c09c646-885a-43e6-a38f-3c2899590e31NotDimensionallyQualified" xlink:type="arc" order="76"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaidClassifiedAsFinancingActivities_43d9bf77-23e7-455f-8da8-017054646dd2NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsPaidClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DividendsPaidClassifiedAsFinancingActivities_43d9bf77-23e7-455f-8da8-017054646dd2NotDimensionallyQualified" xlink:type="arc" order="77"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RepaymentsOfSubordinatedLiabilities_21fac4a2-4ed9-44fa-b914-bfe43b06a4dcNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepaymentsOfSubordinatedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_RepaymentsOfSubordinatedLiabilities_21fac4a2-4ed9-44fa-b914-bfe43b06a4dcNotDimensionallyQualified" xlink:type="arc" order="78"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_AmortizacionDeInstrumentosDePatrimonioPropio_f1d9b99a-dd83-4e32-84d1-0c52f37af396NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_AmortizacionDeInstrumentosDePatrimonioPropio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_AmortizacionDeInstrumentosDePatrimonioPropio_f1d9b99a-dd83-4e32-84d1-0c52f37af396NotDimensionallyQualified" xlink:type="arc" order="79"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_AdquisicionDeInstrumentosDePatrimonioPropio_ad8fab22-09fe-40b9-ba5a-c24aa1c4807aNotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_AdquisicionDeInstrumentosDePatrimonioPropio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_AdquisicionDeInstrumentosDePatrimonioPropio_ad8fab22-09fe-40b9-ba5a-c24aa1c4807aNotDimensionallyQualified" xlink:type="arc" order="80"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosPagosRelacionadosConActividadesDeFinanciacion_99419143-5a5b-4de2-aa4c-184c3863f1fbNotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosPagosRelacionadosConActividadesDeFinanciacion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_OtrosPagosRelacionadosConActividadesDeFinanciacion_99419143-5a5b-4de2-aa4c-184c3863f1fbNotDimensionallyQualified" xlink:type="arc" order="81"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_EntradasDeEfectivoDeActividadesDeFinanciacion_73abc925-ba49-4e3f-a301-fca22aa3320cNotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_EntradasDeEfectivoDeActividadesDeFinanciacion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_EntradasDeEfectivoDeActividadesDeFinanciacion_73abc925-ba49-4e3f-a301-fca22aa3320cNotDimensionallyQualified" xlink:type="arc" order="82"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromIssueOfSubordinatedLiabilities_478cad59-f94d-4c7a-b4e6-4c860364ce86NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromIssueOfSubordinatedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProceedsFromIssueOfSubordinatedLiabilities_478cad59-f94d-4c7a-b4e6-4c860364ce86NotDimensionallyQualified" xlink:type="arc" order="83"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromIssuingShares_31ed2be4-7887-4050-ae29-5737b49a9d5aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromIssuingShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProceedsFromIssuingShares_31ed2be4-7887-4050-ae29-5737b49a9d5aNotDimensionallyQualified" xlink:type="arc" order="84"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSaleOrIssueOfTreasuryShares_ee3be8fd-095f-4942-8a99-f0cbc8ba1985NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromSaleOrIssueOfTreasuryShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProceedsFromSaleOrIssueOfTreasuryShares_ee3be8fd-095f-4942-8a99-f0cbc8ba1985NotDimensionallyQualified" xlink:type="arc" order="85"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosCobrosRelacionadosConActividadesDeFinanciacion_32711ef9-8a89-41fc-865d-ff7bc3a43178NotDimensionallyQualified" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosCobrosRelacionadosConActividadesDeFinanciacion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_san_OtrosCobrosRelacionadosConActividadesDeFinanciacion_32711ef9-8a89-41fc-865d-ff7bc3a43178NotDimensionallyQualified" xlink:type="arc" order="86"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_39860e89-201a-4c43-b8e2-2ca59a2d064cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_39860e89-201a-4c43-b8e2-2ca59a2d064cNotDimensionallyQualified" xlink:type="arc" order="87"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_e7bb1173-551a-467d-9069-03d0dc98bbb9NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_e7bb1173-551a-467d-9069-03d0dc98bbb9NotDimensionallyQualified" xlink:type="arc" order="88"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition_019c4662-ff57-7996-b8bc-42b56eb6d8a3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition_019c4662-ff57-7996-b8bc-42b56eb6d8a3NotDimensionallyQualified" xlink:type="arc" order="89"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashOnHand_3cab1408-d399-46a1-80b9-d1f73b2a2f13NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashOnHand"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashOnHand_3cab1408-d399-46a1-80b9-d1f73b2a2f13NotDimensionallyQualified" xlink:type="arc" order="90"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndBankBalancesAtCentralBanks_1b728bb6-7fc0-4d8f-8888-1faea420b36fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndBankBalancesAtCentralBanks"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashAndBankBalancesAtCentralBanks_1b728bb6-7fc0-4d8f-8888-1faea420b36fNotDimensionallyQualified" xlink:type="arc" order="91"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherCashAndCashEquivalents_a6b13226-6e36-4348-9ab4-c55483f9f310NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherCashAndCashEquivalents_a6b13226-6e36-4348-9ab4-c55483f9f310NotDimensionallyQualified" xlink:type="arc" order="92"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BankOverdraftsClassifiedAsCashEquivalents_1f98e119-f6e9-4b99-8f60-0d39d2986411NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BankOverdraftsClassifiedAsCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_BankOverdraftsClassifiedAsCashEquivalents_1f98e119-f6e9-4b99-8f60-0d39d2986411NotDimensionallyQualified" xlink:type="arc" order="93"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalents_2c9f6dc8-378d-417c-8ee3-d31de94716ceNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashAndCashEquivalents_2c9f6dc8-378d-417c-8ee3-d31de94716ceNotDimensionallyQualified" xlink:type="arc" order="94"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RestrictedCashAndCashEquivalents_095d9045-917e-4507-84be-29357398de2fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RestrictedCashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_RestrictedCashAndCashEquivalents_095d9045-917e-4507-84be-29357398de2fNotDimensionallyQualified" xlink:type="arc" order="95"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalentsClassifiedAsPartOfDisposalGroupHeldForSale_b8e37eca-b379-4b96-a962-031e64c12704NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalentsClassifiedAsPartOfDisposalGroupHeldForSale"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashAndCashEquivalentsClassifiedAsPartOfDisposalGroupHeldForSale_b8e37eca-b379-4b96-a962-031e64c12704NotDimensionallyQualified" xlink:type="arc" order="96"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory_47b3950d-7950-4ee7-afa0-78c905b9e099NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory_47b3950d-7950-4ee7-afa0-78c905b9e099NotDimensionallyQualified" xlink:type="arc" order="97"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification_4dbd5d56-0091-4a33-a3bb-21fc8b241b50NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification_4dbd5d56-0091-4a33-a3bb-21fc8b241b50NotDimensionallyQualified" xlink:type="arc" order="98"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NameOfParentEntity_62dfadb8-0eaa-4391-8052-79990aedd16cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NameOfParentEntity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NameOfParentEntity_62dfadb8-0eaa-4391-8052-79990aedd16cNotDimensionallyQualified" xlink:type="arc" order="99"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NameOfUltimateParentOfGroup_9f4ce818-7f32-46cd-b787-250a6c67a646NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NameOfUltimateParentOfGroup"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NameOfUltimateParentOfGroup_9f4ce818-7f32-46cd-b787-250a6c67a646NotDimensionallyQualified" xlink:type="arc" order="100"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LegalFormOfEntity_d37f52ed-0be7-44af-a810-e04d694e310aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LegalFormOfEntity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_LegalFormOfEntity_d37f52ed-0be7-44af-a810-e04d694e310aNotDimensionallyQualified" xlink:type="arc" order="101"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CountryOfIncorporation_b3129ffa-45d9-4e23-a3d9-5da8ac6e8d64NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CountryOfIncorporation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CountryOfIncorporation_b3129ffa-45d9-4e23-a3d9-5da8ac6e8d64NotDimensionallyQualified" xlink:type="arc" order="102"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DomicileOfEntity_c313ca2a-3136-4f11-acc8-891402236235NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DomicileOfEntity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DomicileOfEntity_c313ca2a-3136-4f11-acc8-891402236235NotDimensionallyQualified" xlink:type="arc" order="103"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AddressOfRegisteredOfficeOfEntity_8be134be-3a7f-4178-8a47-8988b201d927NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AddressOfRegisteredOfficeOfEntity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AddressOfRegisteredOfficeOfEntity_8be134be-3a7f-4178-8a47-8988b201d927NotDimensionallyQualified" xlink:type="arc" order="104"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PrincipalPlaceOfBusiness_e6f9437f-0a04-441f-95bb-232a9700acbdNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PrincipalPlaceOfBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PrincipalPlaceOfBusiness_e6f9437f-0a04-441f-95bb-232a9700acbdNotDimensionallyQualified" xlink:type="arc" order="105"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities_eb24954c-e7ba-4aae-aea3-c4e7dc1d65c7NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities_eb24954c-e7ba-4aae-aea3-c4e7dc1d65c7NotDimensionallyQualified" xlink:type="arc" order="106"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory_c7a4124c-139a-4b58-8793-7cca24c1fcfaNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory_c7a4124c-139a-4b58-8793-7cca24c1fcfaNotDimensionallyQualified" xlink:type="arc" order="107"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfIFRSCompliance_6defe1a8-fbdb-4450-b89c-43083c252ebcNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_StatementOfIFRSCompliance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_StatementOfIFRSCompliance_6defe1a8-fbdb-4450-b89c-43083c252ebcNotDimensionallyQualified" xlink:type="arc" order="108"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory_6c1f3d0d-27b8-4fb6-80cf-12a62a5a0a62NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory_6c1f3d0d-27b8-4fb6-80cf-12a62a5a0a62NotDimensionallyQualified" xlink:type="arc" order="109"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfChangesInAccountingPoliciesExplanatory_7e35c31e-d8bc-4b60-818c-77cabe16309aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfChangesInAccountingPoliciesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfChangesInAccountingPoliciesExplanatory_7e35c31e-d8bc-4b60-818c-77cabe16309aNotDimensionallyQualified" xlink:type="arc" order="110"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFirstTimeAdoptionExplanatory_1f9ff3f7-77f9-4b42-98cd-75d40d0cb587NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFirstTimeAdoptionExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFirstTimeAdoptionExplanatory_1f9ff3f7-77f9-4b42-98cd-75d40d0cb587NotDimensionallyQualified" xlink:type="arc" order="111"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory_46a23f32-f1e1-467f-9503-c8255fda9b98NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory_46a23f32-f1e1-467f-9503-c8255fda9b98NotDimensionallyQualified" xlink:type="arc" order="112"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExplanationOfAssumptionAboutFutureWithSignificantRiskOfResultingInMaterialAdjustments_6dcf4bc2-0adb-4637-b9f2-5d26e0ce53e1NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ExplanationOfAssumptionAboutFutureWithSignificantRiskOfResultingInMaterialAdjustments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ExplanationOfAssumptionAboutFutureWithSignificantRiskOfResultingInMaterialAdjustments_6dcf4bc2-0adb-4637-b9f2-5d26e0ce53e1NotDimensionallyQualified" xlink:type="arc" order="113"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory_843e75ba-ce4a-414f-b070-52966a4b62a0NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory_843e75ba-ce4a-414f-b070-52966a4b62a0NotDimensionallyQualified" xlink:type="arc" order="114"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForEnvironmentRelatedExpenseExplanatory_357e02f3-f805-47e3-9c78-c905c2ac2704NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForEnvironmentRelatedExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForEnvironmentRelatedExpenseExplanatory_357e02f3-f805-47e3-9c78-c905c2ac2704NotDimensionallyQualified" xlink:type="arc" order="115"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory_a5cd1527-e4d0-4001-9aa4-75547f96846aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory_a5cd1527-e4d0-4001-9aa4-75547f96846aNotDimensionallyQualified" xlink:type="arc" order="116"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory_f8cb9b98-8280-4472-8ee7-58f4da7e2e04NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory_f8cb9b98-8280-4472-8ee7-58f4da7e2e04NotDimensionallyQualified" xlink:type="arc" order="117"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory_cb605d8c-ca5b-4af6-9dad-8ce530ef8a2bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory_cb605d8c-ca5b-4af6-9dad-8ce530ef8a2bNotDimensionallyQualified" xlink:type="arc" order="118"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory_09808800-a1ff-4e29-9f2d-c9930db0cd8cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory_09808800-a1ff-4e29-9f2d-c9930db0cd8cNotDimensionallyQualified" xlink:type="arc" order="119"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfHyperinflationaryReportingExplanatory_b797a99f-de85-487e-b143-3a49ac5f4d30NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfHyperinflationaryReportingExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfHyperinflationaryReportingExplanatory_b797a99f-de85-487e-b143-3a49ac5f4d30NotDimensionallyQualified" xlink:type="arc" order="120"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory_6ee9ff4b-c513-4358-bae2-ccf866f07ac4NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory_6ee9ff4b-c513-4358-bae2-ccf866f07ac4NotDimensionallyQualified" xlink:type="arc" order="121"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory_bc7e94b7-6452-40ea-8875-16e449b475caNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBasisOfConsolidationExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory_bc7e94b7-6452-40ea-8875-16e449b475caNotDimensionallyQualified" xlink:type="arc" order="122"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory_1edf3eae-1893-4f2f-9cc7-5ba10506cd03NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory_1edf3eae-1893-4f2f-9cc7-5ba10506cd03NotDimensionallyQualified" xlink:type="arc" order="123"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForSubsidiariesExplanatory_7bb870e8-0329-4ac7-9c2f-2ae8ea93260eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForSubsidiariesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForSubsidiariesExplanatory_7bb870e8-0329-4ac7-9c2f-2ae8ea93260eNotDimensionallyQualified" xlink:type="arc" order="124"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociatesAndJointVenturesExplanatory_3c0a0e9c-c89e-4450-a5e7-0822310d5d54NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociatesAndJointVenturesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociatesAndJointVenturesExplanatory_3c0a0e9c-c89e-4450-a5e7-0822310d5d54NotDimensionallyQualified" xlink:type="arc" order="125"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentsInJointVentures_04cdffe6-23ab-466d-83a1-ec79560faf16NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForInvestmentsInJointVentures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentsInJointVentures_04cdffe6-23ab-466d-83a1-ec79560faf16NotDimensionallyQualified" xlink:type="arc" order="126"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociates_8e644aff-22e2-443a-a0df-1fde2f6bf39aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociates"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociates_8e644aff-22e2-443a-a0df-1fde2f6bf39aNotDimensionallyQualified" xlink:type="arc" order="127"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForTransactionsWithNoncontrollingInterestsExplanatory_11a2031c-1d73-4fb6-b258-0555709e74d0NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForTransactionsWithNoncontrollingInterestsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForTransactionsWithNoncontrollingInterestsExplanatory_11a2031c-1d73-4fb6-b258-0555709e74d0NotDimensionallyQualified" xlink:type="arc" order="128"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory_2cd6f3fb-a080-4adc-ad3b-d1f16013bd0fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory_2cd6f3fb-a080-4adc-ad3b-d1f16013bd0fNotDimensionallyQualified" xlink:type="arc" order="129"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory_5524cffd-a75b-497f-ae9a-b9b00f83cba9NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory_5524cffd-a75b-497f-ae9a-b9b00f83cba9NotDimensionallyQualified" xlink:type="arc" order="130"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory_c71d0230-69a0-4418-bd45-8adc2d5dadf6NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory_c71d0230-69a0-4418-bd45-8adc2d5dadf6NotDimensionallyQualified" xlink:type="arc" order="131"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory_2bc6167c-b69f-4968-add4-0651feed414dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory_2bc6167c-b69f-4968-add4-0651feed414dNotDimensionallyQualified" xlink:type="arc" order="132"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_e7abd9ef-4431-484e-b69a-d6335c526c05NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_e7abd9ef-4431-484e-b69a-d6335c526c05NotDimensionallyQualified" xlink:type="arc" order="133"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents_32aa9a9f-7c19-428d-8e81-127b121486abNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents_32aa9a9f-7c19-428d-8e81-127b121486abNotDimensionallyQualified" xlink:type="arc" order="134"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory_ab050c1d-3842-4b4e-8820-8252a68cfc3eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory_ab050c1d-3842-4b4e-8820-8252a68cfc3eNotDimensionallyQualified" xlink:type="arc" order="135"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory_501fd897-8131-49a2-b439-c653b68c2e21NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory_501fd897-8131-49a2-b439-c653b68c2e21NotDimensionallyQualified" xlink:type="arc" order="136"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_177df49e-196b-4e29-8b87-d8d46ffd9427NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_177df49e-196b-4e29-8b87-d8d46ffd9427NotDimensionallyQualified" xlink:type="arc" order="137"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognisingDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueExplanatory_f5ce40b4-8ad9-43c2-b5ef-33ad3c82d6eaNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForRecognisingDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognisingDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueExplanatory_f5ce40b4-8ad9-43c2-b5ef-33ad3c82d6eaNotDimensionallyQualified" xlink:type="arc" order="138"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory_cb76f7ac-012d-44fc-8cd1-5da8c72b298eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory_cb76f7ac-012d-44fc-8cd1-5da8c72b298eNotDimensionallyQualified" xlink:type="arc" order="139"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory_2dd5fae5-9461-40e6-bd67-e63ea888c4b9NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory_2dd5fae5-9461-40e6-bd67-e63ea888c4b9NotDimensionallyQualified" xlink:type="arc" order="140"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory_8d65a93b-a26f-49d1-a003-132d63371833NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory_8d65a93b-a26f-49d1-a003-132d63371833NotDimensionallyQualified" xlink:type="arc" order="141"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatory_70543968-99ae-419d-b090-ab0dea12b565NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatory_70543968-99ae-419d-b090-ab0dea12b565NotDimensionallyQualified" xlink:type="arc" order="142"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory_e92a999e-8cc9-4b65-aaed-5e6017dcc48cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory_e92a999e-8cc9-4b65-aaed-5e6017dcc48cNotDimensionallyQualified" xlink:type="arc" order="143"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory_ca467070-4067-4b1d-a2b0-37512e168a0cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory_ca467070-4067-4b1d-a2b0-37512e168a0cNotDimensionallyQualified" xlink:type="arc" order="144"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory_0e6789c9-3462-4723-87d7-9e967c7b6e37NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory_0e6789c9-3462-4723-87d7-9e967c7b6e37NotDimensionallyQualified" xlink:type="arc" order="145"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForCollateralExplanatory_624914e4-e46e-4f1f-a103-2337b16177aeNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForCollateralExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForCollateralExplanatory_624914e4-e46e-4f1f-a103-2337b16177aeNotDimensionallyQualified" xlink:type="arc" order="146"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory_54d015c2-8c87-44e5-aa14-a7a6f6b6f26bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory_54d015c2-8c87-44e5-aa14-a7a6f6b6f26bNotDimensionallyQualified" xlink:type="arc" order="147"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory_7c5c0229-4dd3-4174-867e-5538e19d0c02NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory_7c5c0229-4dd3-4174-867e-5538e19d0c02NotDimensionallyQualified" xlink:type="arc" order="148"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory_b714e8e7-aa7e-4bdf-8036-c495f8ce7cf3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory_b714e8e7-aa7e-4bdf-8036-c495f8ce7cf3NotDimensionallyQualified" xlink:type="arc" order="149"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForReinsuranceExplanatory_8b69b9d1-febe-4839-85c9-bbcfcc58f1e5NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForReinsuranceExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForReinsuranceExplanatory_8b69b9d1-febe-4839-85c9-bbcfcc58f1e5NotDimensionallyQualified" xlink:type="arc" order="150"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForInsuranceContracts_ab81ebd6-d02c-413b-bed2-d96cd68ae8c5NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForInsuranceContracts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForInsuranceContracts_ab81ebd6-d02c-413b-bed2-d96cd68ae8c5NotDimensionallyQualified" xlink:type="arc" order="151"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_0d1fe1a2-847c-4b0d-9a53-b9a3f68dc09eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_0d1fe1a2-847c-4b0d-9a53-b9a3f68dc09eNotDimensionallyQualified" xlink:type="arc" order="152"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDepreciationExpenseExplanatory_64000aa9-74e7-422a-9f10-03e8d40c0960NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDepreciationExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDepreciationExpenseExplanatory_64000aa9-74e7-422a-9f10-03e8d40c0960NotDimensionallyQualified" xlink:type="arc" order="153"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentPropertyExplanatory_93072791-148e-4ceb-990c-c6dcaa5ef025NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForInvestmentPropertyExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentPropertyExplanatory_93072791-148e-4ceb-990c-c6dcaa5ef025NotDimensionallyQualified" xlink:type="arc" order="154"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_d602f266-c814-4b32-8404-4cd5b80b6062NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_d602f266-c814-4b32-8404-4cd5b80b6062NotDimensionallyQualified" xlink:type="arc" order="155"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory_683644ff-e6dd-4175-8b7f-cf4b2c4e7220NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory_683644ff-e6dd-4175-8b7f-cf4b2c4e7220NotDimensionallyQualified" xlink:type="arc" order="156"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory_fde2ed19-d4a6-463d-824b-3e17b3296ba4NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory_fde2ed19-d4a6-463d-824b-3e17b3296ba4NotDimensionallyQualified" xlink:type="arc" order="157"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory_45aacec6-4b96-4ff6-a870-1632c5aaf8d9NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory_45aacec6-4b96-4ff6-a870-1632c5aaf8d9NotDimensionallyQualified" xlink:type="arc" order="158"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories_88bcfc29-a510-4be3-beca-042967748392NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories_88bcfc29-a510-4be3-beca-042967748392NotDimensionallyQualified" xlink:type="arc" order="159"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory_29da1002-9386-40ee-a432-a8c30ab14ab3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory_29da1002-9386-40ee-a432-a8c30ab14ab3NotDimensionallyQualified" xlink:type="arc" order="160"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherPayablesExplanatory_a9ac7d63-620b-4291-aa79-8faa54d0b6b7NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherPayablesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherPayablesExplanatory_a9ac7d63-620b-4291-aa79-8faa54d0b6b7NotDimensionallyQualified" xlink:type="arc" order="161"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory_7bf6a462-4ed3-428c-a983-c61ec6b53e48NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory_7bf6a462-4ed3-428c-a983-c61ec6b53e48NotDimensionallyQualified" xlink:type="arc" order="162"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory_d3793d8e-4e45-4eb6-899e-d66de9b12193NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory_d3793d8e-4e45-4eb6-899e-d66de9b12193NotDimensionallyQualified" xlink:type="arc" order="163"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory_2b216a6b-b549-4ab9-a985-7abac79330a1NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory_2b216a6b-b549-4ab9-a985-7abac79330a1NotDimensionallyQualified" xlink:type="arc" order="164"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForTreasurySharesExplanatory_39aa6b85-927d-46cf-afaa-68a03cb9929eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForTreasurySharesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForTreasurySharesExplanatory_39aa6b85-927d-46cf-afaa-68a03cb9929eNotDimensionallyQualified" xlink:type="arc" order="165"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_6c627d04-2e54-4bbe-918c-d070de8d7285NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_6c627d04-2e54-4bbe-918c-d070de8d7285NotDimensionallyQualified" xlink:type="arc" order="166"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_1df677a8-390c-4822-954e-87a21dc4190aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_1df677a8-390c-4822-954e-87a21dc4190aNotDimensionallyQualified" xlink:type="arc" order="167"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForExpensesExplanatory_3986b8cb-d18d-4211-be0c-988250d3446aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForExpensesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForExpensesExplanatory_3986b8cb-d18d-4211-be0c-988250d3446aNotDimensionallyQualified" xlink:type="arc" order="168"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory_3021f64c-8e6b-4cc2-aa96-7e98b5a51ea0NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory_3021f64c-8e6b-4cc2-aa96-7e98b5a51ea0NotDimensionallyQualified" xlink:type="arc" order="169"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDividendsExplanatory_bbc64fac-b45a-41d9-962f-a55069571f0aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDividendsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDividendsExplanatory_bbc64fac-b45a-41d9-962f-a55069571f0aNotDimensionallyQualified" xlink:type="arc" order="170"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory_1a761d6c-e093-4da6-9b1e-2375198a917bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory_1a761d6c-e093-4da6-9b1e-2375198a917bNotDimensionallyQualified" xlink:type="arc" order="171"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinanceCostsExplanatory_b96dca31-b643-4b97-8aca-05ccb4182212NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinanceCostsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinanceCostsExplanatory_b96dca31-b643-4b97-8aca-05ccb4182212NotDimensionallyQualified" xlink:type="arc" order="172"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFeeAndCommissionIncomeAndExpenseExplanatory_1068c8cc-dca8-42d3-972b-1dc6e9e4b0c3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFeeAndCommissionIncomeAndExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFeeAndCommissionIncomeAndExpenseExplanatory_1068c8cc-dca8-42d3-972b-1dc6e9e4b0c3NotDimensionallyQualified" xlink:type="arc" order="173"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialGuaranteesExplanatory_38de22f9-6d26-4c61-8be6-d3388f7aa186NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialGuaranteesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialGuaranteesExplanatory_38de22f9-6d26-4c61-8be6-d3388f7aa186NotDimensionallyQualified" xlink:type="arc" order="174"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory_4287d9d7-3386-40e9-b599-d4c2b398160eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory_4287d9d7-3386-40e9-b599-d4c2b398160eNotDimensionallyQualified" xlink:type="arc" order="175"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForTerminationBenefits_2d193bbf-eb44-4925-88ed-55aca0e63c34NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForTerminationBenefits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForTerminationBenefits_2d193bbf-eb44-4925-88ed-55aca0e63c34NotDimensionallyQualified" xlink:type="arc" order="176"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_a8107ae1-0f0e-4fdc-bed9-d7011ad8a3bdNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_a8107ae1-0f0e-4fdc-bed9-d7011ad8a3bdNotDimensionallyQualified" xlink:type="arc" order="177"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory_4456de6e-139f-4fbb-85f7-a1f4136852a8NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory_4456de6e-139f-4fbb-85f7-a1f4136852a8NotDimensionallyQualified" xlink:type="arc" order="178"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory_233990d1-e770-4240-87dd-a2f169fcfe1eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory_233990d1-e770-4240-87dd-a2f169fcfe1eNotDimensionallyQualified" xlink:type="arc" order="179"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForTransactionsWithRelatedPartiesExplanatory_a03e61fe-c62f-43c2-821f-6f1bf2205796NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForTransactionsWithRelatedPartiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForTransactionsWithRelatedPartiesExplanatory_a03e61fe-c62f-43c2-821f-6f1bf2205796NotDimensionallyQualified" xlink:type="arc" order="180"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsExplanatory_176142c7-9758-4e44-8bab-b3b4534a0d20NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfBusinessCombinationsExplanatory_176142c7-9758-4e44-8bab-b3b4534a0d20NotDimensionallyQualified" xlink:type="arc" order="181"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners_2b1fb9cf-3ec5-4113-91d2-314f8089b2afNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners_2b1fb9cf-3ec5-4113-91d2-314f8089b2afNotDimensionallyQualified" xlink:type="arc" order="182"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare_3174f70d-7d1b-4c09-96b2-66d43e75c12fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare_3174f70d-7d1b-4c09-96b2-66d43e75c12fNotDimensionallyQualified" xlink:type="arc" order="183"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare_0d20b8af-3956-4ada-9b0f-2dcc47a97825NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare_0d20b8af-3956-4ada-9b0f-2dcc47a97825NotDimensionallyQualified" xlink:type="arc" order="184"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEarningsPerShareExplanatory_6564a041-979e-4c5d-88ba-6f21138813deNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEarningsPerShareExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfEarningsPerShareExplanatory_6564a041-979e-4c5d-88ba-6f21138813deNotDimensionallyQualified" xlink:type="arc" order="185"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory_841ddfaf-5cb5-40e6-92b6-50fd3b39eeb2NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory_841ddfaf-5cb5-40e6-92b6-50fd3b39eeb2NotDimensionallyQualified" xlink:type="arc" order="186"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory_e776196c-c83c-4229-be20-4d3963e14ec2NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory_e776196c-c83c-4229-be20-4d3963e14ec2NotDimensionallyQualified" xlink:type="arc" order="187"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfLoansAndAdvancesToBanksExplanatory_83d6e02d-4696-42f9-991c-ff6df27ea800NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfLoansAndAdvancesToBanksExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfLoansAndAdvancesToBanksExplanatory_83d6e02d-4696-42f9-991c-ff6df27ea800NotDimensionallyQualified" xlink:type="arc" order="188"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRepurchaseAndReverseRepurchaseAgreementsExplanatory_029f5eb6-f7fd-4f77-b709-67a91f3076f6NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfRepurchaseAndReverseRepurchaseAgreementsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfRepurchaseAndReverseRepurchaseAgreementsExplanatory_029f5eb6-f7fd-4f77-b709-67a91f3076f6NotDimensionallyQualified" xlink:type="arc" order="189"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory_e5d24393-046d-4375-9043-e827f3869ee5NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory_e5d24393-046d-4375-9043-e827f3869ee5NotDimensionallyQualified" xlink:type="arc" order="190"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDebtSecuritiesExplanatory_1486b48c-c9f4-4dd4-8a76-4d5358801865NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDebtSecuritiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDebtSecuritiesExplanatory_1486b48c-c9f4-4dd4-8a76-4d5358801865NotDimensionallyQualified" xlink:type="arc" order="191"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory_ec82aea3-b919-4e5b-8c98-b071ea5a5e40NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory_ec82aea3-b919-4e5b-8c98-b071ea5a5e40NotDimensionallyQualified" xlink:type="arc" order="192"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory_950eb036-6137-497d-88ef-90573f0460edNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory_950eb036-6137-497d-88ef-90573f0460edNotDimensionallyQualified" xlink:type="arc" order="193"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory_21468ec4-1fca-4ed3-9b9e-a6eb5085a570NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory_21468ec4-1fca-4ed3-9b9e-a6eb5085a570NotDimensionallyQualified" xlink:type="arc" order="194"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory_a85b9016-03dd-4e7d-9e13-3c19a8b67812NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory_a85b9016-03dd-4e7d-9e13-3c19a8b67812NotDimensionallyQualified" xlink:type="arc" order="195"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_906159af-9ab6-4fa2-b4bf-96a8927f38b3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_906159af-9ab6-4fa2-b4bf-96a8927f38b3NotDimensionallyQualified" xlink:type="arc" order="196"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsHeldForTradingExplanatory_fe6d5659-95cd-4199-b0dd-bad994c89746NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsHeldForTradingExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsHeldForTradingExplanatory_fe6d5659-95cd-4199-b0dd-bad994c89746NotDimensionallyQualified" xlink:type="arc" order="197"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsHeldForTradingExplanatory_6729c2c0-0246-4c24-8b1e-13c17299eb58NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsHeldForTradingExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinancialAssetsHeldForTradingExplanatory_6729c2c0-0246-4c24-8b1e-13c17299eb58NotDimensionallyQualified" xlink:type="arc" order="198"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesHeldForTradingExplanatory_1dc33804-5bb0-4118-a88e-0fbdfd3a9306NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesHeldForTradingExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinancialLiabilitiesHeldForTradingExplanatory_1dc33804-5bb0-4118-a88e-0fbdfd3a9306NotDimensionallyQualified" xlink:type="arc" order="199"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_d06dd5e3-e7ad-4b2b-8a5d-0769437d4db0NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_d06dd5e3-e7ad-4b2b-8a5d-0769437d4db0NotDimensionallyQualified" xlink:type="arc" order="200"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfExpensesExplanatory_d996d00a-fd12-4d42-a2f9-61863d21ab5cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfExpensesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfExpensesExplanatory_d996d00a-fd12-4d42-a2f9-61863d21ab5cNotDimensionallyQualified" xlink:type="arc" order="201"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfExpensesByNatureExplanatory_f552ca9c-92b2-423d-a6e4-00dabda5fbfdNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfExpensesByNatureExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfExpensesByNatureExplanatory_f552ca9c-92b2-423d-a6e4-00dabda5fbfdNotDimensionallyQualified" xlink:type="arc" order="202"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfLoansAndAdvancesToCustomersExplanatory_7995e169-70df-4cd4-b0bf-6cb01846c095NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfLoansAndAdvancesToCustomersExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfLoansAndAdvancesToCustomersExplanatory_7995e169-70df-4cd4-b0bf-6cb01846c095NotDimensionallyQualified" xlink:type="arc" order="203"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCollateralExplanatory_d1eb36bb-ac1c-48eb-8310-490c58069af3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCollateralExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCollateralExplanatory_d1eb36bb-ac1c-48eb-8310-490c58069af3NotDimensionallyQualified" xlink:type="arc" order="204"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory_d070e791-a2a0-415e-a38e-e51ba3a5e93eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory_d070e791-a2a0-415e-a38e-e51ba3a5e93eNotDimensionallyQualified" xlink:type="arc" order="205"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory_ead54362-251d-41a4-aafb-1bf29315aaf5NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory_ead54362-251d-41a4-aafb-1bf29315aaf5NotDimensionallyQualified" xlink:type="arc" order="206"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory_0e43b0a3-7a88-4f8a-b74a-1c3b77ce2e3dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory_0e43b0a3-7a88-4f8a-b74a-1c3b77ce2e3dNotDimensionallyQualified" xlink:type="arc" order="207"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDiscontinuedOperationsExplanatory_4056d9ef-bf7d-4d91-8995-b907c4cf7b82NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDiscontinuedOperationsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDiscontinuedOperationsExplanatory_4056d9ef-bf7d-4d91-8995-b907c4cf7b82NotDimensionallyQualified" xlink:type="arc" order="208"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory_5872bf75-c3ac-45a5-ac21-b169301391b9NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory_5872bf75-c3ac-45a5-ac21-b169301391b9NotDimensionallyQualified" xlink:type="arc" order="209"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory_0d9663dc-c370-4ba5-b532-5f4757002c8bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory_0d9663dc-c370-4ba5-b532-5f4757002c8bNotDimensionallyQualified" xlink:type="arc" order="210"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory_d4952a37-bf04-4f93-8834-b37e808d2bddNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory_d4952a37-bf04-4f93-8834-b37e808d2bddNotDimensionallyQualified" xlink:type="arc" order="211"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesExplanatory_8832ab95-1be6-4f10-b3d6-960994be308dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesExplanatory_8832ab95-1be6-4f10-b3d6-960994be308dNotDimensionallyQualified" xlink:type="arc" order="212"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfJointVenturesExplanatory_cecfcc9f-cf0a-4aa4-951b-b27268490624NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfJointVenturesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfJointVenturesExplanatory_cecfcc9f-cf0a-4aa4-951b-b27268490624NotDimensionallyQualified" xlink:type="arc" order="213"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInsuranceContractsExplanatory_34d289fe-b524-4b7b-903d-a161aaca5bb7NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInsuranceContractsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInsuranceContractsExplanatory_34d289fe-b524-4b7b-903d-a161aaca5bb7NotDimensionallyQualified" xlink:type="arc" order="214"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReinsuranceExplanatory_3684077c-1cf0-411d-86f2-6800dba6eddeNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReinsuranceExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfReinsuranceExplanatory_3684077c-1cf0-411d-86f2-6800dba6eddeNotDimensionallyQualified" xlink:type="arc" order="215"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_f4900bca-7c09-4c0c-ba72-6eb8919e4274NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_f4900bca-7c09-4c0c-ba72-6eb8919e4274NotDimensionallyQualified" xlink:type="arc" order="216"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInvestmentPropertyExplanatory_c7b93294-219e-4652-89f2-b29df7e0d540NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInvestmentPropertyExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInvestmentPropertyExplanatory_c7b93294-219e-4652-89f2-b29df7e0d540NotDimensionallyQualified" xlink:type="arc" order="217"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfLeasesExplanatory_07b602fb-c0d8-4da4-916f-eba5f250c911NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfLeasesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfLeasesExplanatory_07b602fb-c0d8-4da4-916f-eba5f250c911NotDimensionallyQualified" xlink:type="arc" order="218"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory_8d44c906-b583-4956-967d-93bda6aa12b7NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory_8d44c906-b583-4956-967d-93bda6aa12b7NotDimensionallyQualified" xlink:type="arc" order="219"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory_621c3c92-ed07-478e-8460-b56075a11b4bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory_621c3c92-ed07-478e-8460-b56075a11b4bNotDimensionallyQualified" xlink:type="arc" order="220"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsExplanatory_264e0d6f-85f6-459e-931e-7f60d57b0a5cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfIntangibleAssetsExplanatory_264e0d6f-85f6-459e-931e-7f60d57b0a5cNotDimensionallyQualified" xlink:type="arc" order="221"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfResearchAndDevelopmentExpenseExplanatory_2d3f1469-7fe8-4a01-bb5f-0abdf379ecbeNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfResearchAndDevelopmentExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfResearchAndDevelopmentExpenseExplanatory_2d3f1469-7fe8-4a01-bb5f-0abdf379ecbeNotDimensionallyQualified" xlink:type="arc" order="222"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGoodwillExplanatory_04a1ca16-6883-42e5-96a0-1c3f7aa283edNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGoodwillExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfGoodwillExplanatory_04a1ca16-6883-42e5-96a0-1c3f7aa283edNotDimensionallyQualified" xlink:type="arc" order="223"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherAssetsExplanatory_1a4a1aee-3bcf-41bc-85d0-eef5f0ded0dfNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherAssetsExplanatory_1a4a1aee-3bcf-41bc-85d0-eef5f0ded0dfNotDimensionallyQualified" xlink:type="arc" order="224"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory_a8439dc3-8179-4ad1-a32f-171b122f9dc2NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory_a8439dc3-8179-4ad1-a32f-171b122f9dc2NotDimensionallyQualified" xlink:type="arc" order="225"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfPrepaymentsAndOtherAssetsExplanatory_c918ffbe-bc83-4879-a4da-44e1be3388d1NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfPrepaymentsAndOtherAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfPrepaymentsAndOtherAssetsExplanatory_c918ffbe-bc83-4879-a4da-44e1be3388d1NotDimensionallyQualified" xlink:type="arc" order="226"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBorrowingsExplanatory_a5413ee2-7a4c-4571-87dd-1a424ec631acNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBorrowingsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfBorrowingsExplanatory_a5413ee2-7a4c-4571-87dd-1a424ec631acNotDimensionallyQualified" xlink:type="arc" order="227"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDepositsFromBanksExplanatory_cbab475d-ca14-47b3-a7ff-b1b923c60c5fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDepositsFromBanksExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDepositsFromBanksExplanatory_cbab475d-ca14-47b3-a7ff-b1b923c60c5fNotDimensionallyQualified" xlink:type="arc" order="228"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDepositsFromCustomersExplanatory_3569ca6f-db37-4a28-be08-f15d2ea4b719NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDepositsFromCustomersExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDepositsFromCustomersExplanatory_3569ca6f-db37-4a28-be08-f15d2ea4b719NotDimensionallyQualified" xlink:type="arc" order="229"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSubordinatedLiabilitiesExplanatory_e95ac05a-1dfe-4f46-93c7-ba14bf59b66cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSubordinatedLiabilitiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfSubordinatedLiabilitiesExplanatory_e95ac05a-1dfe-4f46-93c7-ba14bf59b66cNotDimensionallyQualified" xlink:type="arc" order="230"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfProvisionsExplanatory_1f744e19-7974-4aaf-b3e0-c12a0e927e24NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfProvisionsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfProvisionsExplanatory_1f744e19-7974-4aaf-b3e0-c12a0e927e24NotDimensionallyQualified" xlink:type="arc" order="231"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory_6154cb67-5ba1-46e9-b34f-8972af7c14a7NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory_6154cb67-5ba1-46e9-b34f-8972af7c14a7NotDimensionallyQualified" xlink:type="arc" order="232"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory_a3deca7b-c261-4351-ac2e-0c0ee76c6e3fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory_a3deca7b-c261-4351-ac2e-0c0ee76c6e3fNotDimensionallyQualified" xlink:type="arc" order="233"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCommitmentsExplanatory_c5449ca0-7775-4618-ab37-fe868ce8be03NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCommitmentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCommitmentsExplanatory_c5449ca0-7775-4618-ab37-fe868ce8be03NotDimensionallyQualified" xlink:type="arc" order="234"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfContingentLiabilitiesExplanatory_43df2232-8df5-4633-9e66-7fd5dc7ff10bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfContingentLiabilitiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfContingentLiabilitiesExplanatory_43df2232-8df5-4633-9e66-7fd5dc7ff10bNotDimensionallyQualified" xlink:type="arc" order="235"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherLiabilitiesExplanatory_351e1cce-3c36-44e7-9d04-46b00390f1ecNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherLiabilitiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherLiabilitiesExplanatory_351e1cce-3c36-44e7-9d04-46b00390f1ecNotDimensionallyQualified" xlink:type="arc" order="236"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory_eab5e1ed-637b-40c6-a0f0-b37e6a31cb0aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory_eab5e1ed-637b-40c6-a0f0-b37e6a31cb0aNotDimensionallyQualified" xlink:type="arc" order="237"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory_2cbe587d-0acc-4510-966c-ba2fc80d7922NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory_2cbe587d-0acc-4510-966c-ba2fc80d7922NotDimensionallyQualified" xlink:type="arc" order="238"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDeferredIncomeExplanatory_451923e0-b88b-427a-949b-80b8f8dec5adNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDeferredIncomeExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDeferredIncomeExplanatory_451923e0-b88b-427a-949b-80b8f8dec5adNotDimensionallyQualified" xlink:type="arc" order="239"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTaxReceivablesAndPayablesExplanatory_a149c41c-db23-4578-96b1-13d06ba0064eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTaxReceivablesAndPayablesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfTaxReceivablesAndPayablesExplanatory_a149c41c-db23-4578-96b1-13d06ba0064eNotDimensionallyQualified" xlink:type="arc" order="240"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIncomeTaxExplanatory_d554ac78-a452-4403-a27f-d1d5d3aeb9a5NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIncomeTaxExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfIncomeTaxExplanatory_d554ac78-a452-4403-a27f-d1d5d3aeb9a5NotDimensionallyQualified" xlink:type="arc" order="241"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDeferredTaxesExplanatory_10f54a49-2ddd-4424-b501-864c10e351f2NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDeferredTaxesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDeferredTaxesExplanatory_10f54a49-2ddd-4424-b501-864c10e351f2NotDimensionallyQualified" xlink:type="arc" order="242"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory_07a9b298-0e96-430c-a892-d9757d886a31NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory_07a9b298-0e96-430c-a892-d9757d886a31NotDimensionallyQualified" xlink:type="arc" order="243"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_1e82cffc-e81b-4d6c-a528-9ab1fe87e546NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_1e82cffc-e81b-4d6c-a528-9ab1fe87e546NotDimensionallyQualified" xlink:type="arc" order="244"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIssuedCapitalExplanatory_1931b42b-85cf-46d3-82cc-14fd487010f6NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfIssuedCapitalExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfIssuedCapitalExplanatory_1931b42b-85cf-46d3-82cc-14fd487010f6NotDimensionallyQualified" xlink:type="arc" order="245"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory_0f242bb8-1077-4ef0-a795-c17b89ec228fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory_0f242bb8-1077-4ef0-a795-c17b89ec228fNotDimensionallyQualified" xlink:type="arc" order="246"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTreasurySharesExplanatory_7cbb5dba-1af0-4e54-9944-e0128b97602eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTreasurySharesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfTreasurySharesExplanatory_7cbb5dba-1af0-4e54-9944-e0128b97602eNotDimensionallyQualified" xlink:type="arc" order="247"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRevenueExplanatory_1444a69f-4554-41b8-88f3-a8e457d0b00fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfRevenueExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfRevenueExplanatory_1444a69f-4554-41b8-88f3-a8e457d0b00fNotDimensionallyQualified" xlink:type="arc" order="248"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory_447179ee-03a7-472e-ba78-66d43ae3c618NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory_447179ee-03a7-472e-ba78-66d43ae3c618NotDimensionallyQualified" xlink:type="arc" order="249"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory_e14678da-a3db-4bf8-a73d-291418b86062NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory_e14678da-a3db-4bf8-a73d-291418b86062NotDimensionallyQualified" xlink:type="arc" order="250"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinanceIncomeExplanatory_8738c3b6-c206-4aaa-a28d-d988086ceee9NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinanceIncomeExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinanceIncomeExplanatory_8738c3b6-c206-4aaa-a28d-d988086ceee9NotDimensionallyQualified" xlink:type="arc" order="251"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinanceCostExplanatory_4a09cc6c-34de-4317-97e9-90e696c31968NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinanceCostExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinanceCostExplanatory_4a09cc6c-34de-4317-97e9-90e696c31968NotDimensionallyQualified" xlink:type="arc" order="252"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInterestIncomeExpenseExplanatory_c2dd7430-6b7b-4582-ab21-92dd24c36190NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInterestIncomeExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInterestIncomeExpenseExplanatory_c2dd7430-6b7b-4582-ab21-92dd24c36190NotDimensionallyQualified" xlink:type="arc" order="253"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInterestIncomeExplanatory_ff83f164-a935-4cc5-91b1-6fd9109292aeNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInterestIncomeExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInterestIncomeExplanatory_ff83f164-a935-4cc5-91b1-6fd9109292aeNotDimensionallyQualified" xlink:type="arc" order="254"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInterestExpenseExplanatory_28681dcc-bfb9-4293-be34-520aa890e287NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInterestExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInterestExpenseExplanatory_28681dcc-bfb9-4293-be34-520aa890e287NotDimensionallyQualified" xlink:type="arc" order="255"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFeeAndCommissionIncomeExpenseExplanatory_0ff4f224-b156-4906-8cbe-fddd9790f78fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFeeAndCommissionIncomeExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFeeAndCommissionIncomeExpenseExplanatory_0ff4f224-b156-4906-8cbe-fddd9790f78fNotDimensionallyQualified" xlink:type="arc" order="256"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDividendsExplanatory_66e8cd2a-954c-49f0-96c7-dfebcdc4c932NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfDividendsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDividendsExplanatory_66e8cd2a-954c-49f0-96c7-dfebcdc4c932NotDimensionallyQualified" xlink:type="arc" order="257"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTradingIncomeExpenseExplanatory_88f424df-06ec-41ee-acf2-36e3dde39f99NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfTradingIncomeExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfTradingIncomeExpenseExplanatory_88f424df-06ec-41ee-acf2-36e3dde39f99NotDimensionallyQualified" xlink:type="arc" order="258"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory_818b59dd-24b0-4d0d-a179-290b7ea1ad74NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory_818b59dd-24b0-4d0d-a179-290b7ea1ad74NotDimensionallyQualified" xlink:type="arc" order="259"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExplanatory_6e25f05c-fb9b-427e-8681-a9fc7a9835ffNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherOperatingIncomeExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExplanatory_6e25f05c-fb9b-427e-8681-a9fc7a9835ffNotDimensionallyQualified" xlink:type="arc" order="260"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherOperatingExpenseExplanatory_5588b9d6-3855-4fd6-84aa-4218e014960aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherOperatingExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherOperatingExpenseExplanatory_5588b9d6-3855-4fd6-84aa-4218e014960aNotDimensionallyQualified" xlink:type="arc" order="261"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutEmployeesExplanatory_70a98e57-097a-4512-8381-bf3212d13374NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInformationAboutEmployeesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInformationAboutEmployeesExplanatory_70a98e57-097a-4512-8381-bf3212d13374NotDimensionallyQualified" xlink:type="arc" order="262"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory_487cca3d-e141-45d1-8d47-e3c9eeca2751NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEmployeeBenefitsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory_487cca3d-e141-45d1-8d47-e3c9eeca2751NotDimensionallyQualified" xlink:type="arc" order="263"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_22dd7692-1519-41b9-8834-6c969309fa1cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_22dd7692-1519-41b9-8834-6c969309fa1cNotDimensionallyQualified" xlink:type="arc" order="264"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory_0b0c2f62-ac32-4924-ac7d-1e3813526a59NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory_0b0c2f62-ac32-4924-ac7d-1e3813526a59NotDimensionallyQualified" xlink:type="arc" order="265"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory_63ad43ca-6b9a-4fad-ba87-f6986c5f3348NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAuditorsRemunerationExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory_63ad43ca-6b9a-4fad-ba87-f6986c5f3348NotDimensionallyQualified" xlink:type="arc" order="266"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_967040ef-d93f-4fa6-baf0-5b5ed93bb21cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_967040ef-d93f-4fa6-baf0-5b5ed93bb21cNotDimensionallyQualified" xlink:type="arc" order="267"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory_d3a156e1-91e7-49fa-93ed-fd7946f08fd7NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory_d3a156e1-91e7-49fa-93ed-fd7946f08fd7NotDimensionallyQualified" xlink:type="arc" order="268"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRelatedPartyExplanatory_ecd63256-1b47-4f84-a316-356407689eb8NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfRelatedPartyExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfRelatedPartyExplanatory_ecd63256-1b47-4f84-a316-356407689eb8NotDimensionallyQualified" xlink:type="arc" order="269"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_b8d38743-f95c-4277-9730-08b84d24121bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfFinancialRiskManagementExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_b8d38743-f95c-4277-9730-08b84d24121bNotDimensionallyQualified" xlink:type="arc" order="270"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCreditRiskExplanatory_6814f0f2-a4f6-46eb-82b8-cb9a9426559fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCreditRiskExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCreditRiskExplanatory_6814f0f2-a4f6-46eb-82b8-cb9a9426559fNotDimensionallyQualified" xlink:type="arc" order="271"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMarketRiskExplanatory_0f3d40fe-82f9-42b8-92b9-87b9247d7299NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfMarketRiskExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfMarketRiskExplanatory_0f3d40fe-82f9-42b8-92b9-87b9247d7299NotDimensionallyQualified" xlink:type="arc" order="272"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfLiquidityRiskExplanatory_6e6c9b94-c940-4f84-a8ac-155f44f17e4aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfLiquidityRiskExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfLiquidityRiskExplanatory_6e6c9b94-c940-4f84-a8ac-155f44f17e4aNotDimensionallyQualified" xlink:type="arc" order="273"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory_2ad53486-4e8f-4917-b4f5-ea2f33df0670NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory_2ad53486-4e8f-4917-b4f5-ea2f33df0670NotDimensionallyQualified" xlink:type="arc" order="274"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory_7a0dbf98-61c5-412e-8fe3-4c5a606d491bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory_7a0dbf98-61c5-412e-8fe3-4c5a606d491bNotDimensionallyQualified" xlink:type="arc" order="275"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory_14e1bcdb-bb42-469b-9e30-c331349f5e02NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory_14e1bcdb-bb42-469b-9e30-c331349f5e02NotDimensionallyQualified" xlink:type="arc" order="276"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGovernmentGrantsExplanatory_274d5e32-39ee-477e-b2e4-a04f8815286dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGovernmentGrantsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfGovernmentGrantsExplanatory_274d5e32-39ee-477e-b2e4-a04f8815286dNotDimensionallyQualified" xlink:type="arc" order="277"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory_10ae93e8-ce28-4637-b4cd-e0063662bab4NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory_10ae93e8-ce28-4637-b4cd-e0063662bab4NotDimensionallyQualified" xlink:type="arc" order="278"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForRepurchaseAndReverseRepurchaseAgreementsExplanatory_21685541-6a30-4f74-9754-c5b2ad6dafbdNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForRepurchaseAndReverseRepurchaseAgreementsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForRepurchaseAndReverseRepurchaseAgreementsExplanatory_21685541-6a30-4f74-9754-c5b2ad6dafbdNotDimensionallyQualified" xlink:type="arc" order="279"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.santander.com/role/Anchoring" xlink:type="simple" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#Anchoring"/>
  <link:definitionLink xlink:role="http://www.santander.com/role/Anchoring" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_san_ActivosNoCorrientesMantenidosParaLaVentaQueNoSeReclasificaranAResultadosAntesDeImpuestos_cd45d09b-9934-4cbb-a2fe-9239a5513af4" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ActivosNoCorrientesMantenidosParaLaVentaQueNoSeReclasificaranAResultadosAntesDeImpuestos"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTax" xlink:to="loc_san_ActivosNoCorrientesMantenidosParaLaVentaQueNoSeReclasificaranAResultadosAntesDeImpuestos_cd45d09b-9934-4cbb-a2fe-9239a5513af4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ActivosPorImpuestos_9d94850a-3af1-4d4b-97ae-f7ea529c363b" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ActivosPorImpuestos"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Assets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Assets"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_Assets" xlink:to="loc_san_ActivosPorImpuestos_9d94850a-3af1-4d4b-97ae-f7ea529c363b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ActivosTangibles_016ba0b2-ad68-4f55-92c6-afd96b598f48" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ActivosTangibles"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_NoncurrentAssets" xlink:to="loc_san_ActivosTangibles_016ba0b2-ad68-4f55-92c6-afd96b598f48" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_AdquisicionActivosNoCorrientesYPasivosQueSeHanClasificadoComoMantenidosParaLaVenta_72c92496-5b18-43b5-8ff3-c4b2a7529e04" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_AdquisicionActivosNoCorrientesYPasivosQueSeHanClasificadoComoMantenidosParaLaVenta"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="loc_san_AdquisicionActivosNoCorrientesYPasivosQueSeHanClasificadoComoMantenidosParaLaVenta_72c92496-5b18-43b5-8ff3-c4b2a7529e04" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_AdquisicionDeInstrumentosDePatrimonioPropio_84ee4c20-e119-4e57-9fd9-c8830664ef37" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_AdquisicionDeInstrumentosDePatrimonioPropio"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsToAcquireOrRedeemEntitysShares"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:to="loc_san_AdquisicionDeInstrumentosDePatrimonioPropio_84ee4c20-e119-4e57-9fd9-c8830664ef37" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_AmortizacionDeInstrumentosDePatrimonioPropio_98bacf59-dfe6-423d-ae46-8317e51d5d65" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_AmortizacionDeInstrumentosDePatrimonioPropio"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:to="loc_san_AmortizacionDeInstrumentosDePatrimonioPropio_98bacf59-dfe6-423d-ae46-8317e51d5d65" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_AumentoDisminucionNetaDeLosActivosDeExplotacion_8b0f2054-81db-4881-98b6-3363e04b43ac" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_AumentoDisminucionNetaDeLosActivosDeExplotacion"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:to="loc_san_AumentoDisminucionNetaDeLosActivosDeExplotacion_8b0f2054-81db-4881-98b6-3363e04b43ac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_AumentoDisminucionNetaDeLosActivosDeExplotacionActivosFinancierosNoDestinadosANegociacionValoradosObligatoriamenteAValorRazonableConCambiosEnResultados_f167eb71-ab59-42d8-a210-59ecbbf9159b" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_AumentoDisminucionNetaDeLosActivosDeExplotacionActivosFinancierosNoDestinadosANegociacionValoradosObligatoriamenteAValorRazonableConCambiosEnResultados"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInWorkingCapital"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="loc_san_AumentoDisminucionNetaDeLosActivosDeExplotacionActivosFinancierosNoDestinadosANegociacionValoradosObligatoriamenteAValorRazonableConCambiosEnResultados_f167eb71-ab59-42d8-a210-59ecbbf9159b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_AumentoDisminucionNetaDeLosPasivosDeExplotacion_b58a5b96-acaf-4ecf-aabe-327a42bf1544" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_AumentoDisminucionNetaDeLosPasivosDeExplotacion"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:to="loc_san_AumentoDisminucionNetaDeLosPasivosDeExplotacion_b58a5b96-acaf-4ecf-aabe-327a42bf1544" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_CambiosDelValorRazonableDeLosInstrumentosDePatrimonioValoradosAValorRazonableConCambiosEnOtroResultadoGlobalElementoCubierto_84106263-f3c7-413e-924d-692adf346b4b" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_CambiosDelValorRazonableDeLosInstrumentosDePatrimonioValoradosAValorRazonableConCambiosEnOtroResultadoGlobalElementoCubierto"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstruments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstruments"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstruments" xlink:to="loc_san_CambiosDelValorRazonableDeLosInstrumentosDePatrimonioValoradosAValorRazonableConCambiosEnOtroResultadoGlobalElementoCubierto_84106263-f3c7-413e-924d-692adf346b4b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_CambiosDelValorRazonableDeLosInstrumentosDePatrimonioValoradosAValorRazonableConCambiosEnOtroResultadoGlobalInstrumentoDeCobertura_336572dd-9448-4203-8a7c-f47cb3510a88" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_CambiosDelValorRazonableDeLosInstrumentosDePatrimonioValoradosAValorRazonableConCambiosEnOtroResultadoGlobalInstrumentoDeCobertura"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstruments" xlink:to="loc_san_CambiosDelValorRazonableDeLosInstrumentosDePatrimonioValoradosAValorRazonableConCambiosEnOtroResultadoGlobalInstrumentoDeCobertura_336572dd-9448-4203-8a7c-f47cb3510a88" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_CapitalDesembolsado_83c5792a-0d65-46c3-bc24-27f17a53dcb9" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_CapitalDesembolsado"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssuedCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuedCapital"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IssuedCapital" xlink:to="loc_san_CapitalDesembolsado_83c5792a-0d65-46c3-bc24-27f17a53dcb9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_CapitalNoDesembolsadoExigido_ae311c78-a5b4-4a50-b9f6-7daf14574d3d" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_CapitalNoDesembolsadoExigido"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IssuedCapital" xlink:to="loc_san_CapitalNoDesembolsadoExigido_ae311c78-a5b4-4a50-b9f6-7daf14574d3d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ComponenteDePatrimonioNetoDeLosInstrumentosFinancierosCompuestos_94506cf0-bdcb-4334-ad4a-15cc5c9314d9" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ComponenteDePatrimonioNetoDeLosInstrumentosFinancierosCompuestos"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityInstrumentsHeld" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityInstrumentsHeld"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_EquityInstrumentsHeld" xlink:to="loc_san_ComponenteDePatrimonioNetoDeLosInstrumentosFinancierosCompuestos_94506cf0-bdcb-4334-ad4a-15cc5c9314d9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ContratosDeSegurosVinculadosAPensiones_dd370914-8344-4cc6-93df-36709ba4be38" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ContratosDeSegurosVinculadosAPensiones"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InsuranceContractsThatAreAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InsuranceContractsThatAreAssets"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_InsuranceContractsThatAreAssets" xlink:to="loc_san_ContratosDeSegurosVinculadosAPensiones_dd370914-8344-4cc6-93df-36709ba4be38" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DeterioroDelValorOReversionDelDeterioroDelValorDeActivosNoFinancieros_db42ea41-4e43-408d-9425-0780c59d655c" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DeterioroDelValorOReversionDelDeterioroDelValorDeActivosNoFinancieros"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:to="loc_san_DeterioroDelValorOReversionDelDeterioroDelValorDeActivosNoFinancieros_db42ea41-4e43-408d-9425-0780c59d655c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DeterioroDelValorOReversionDelDeterioroDelValorDeInversionesEnNegociosConjuntosOAsociadas_967044e5-2a32-4759-86b6-67ce6766281c" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DeterioroDelValorOReversionDelDeterioroDelValorDeInversionesEnNegociosConjuntosOAsociadas"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:to="loc_san_DeterioroDelValorOReversionDelDeterioroDelValorDeInversionesEnNegociosConjuntosOAsociadas_967044e5-2a32-4759-86b6-67ce6766281c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_DividendosACuenta_f7df688e-7e1f-4775-95d3-c989fddea828" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_DividendosACuenta"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendPayables"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_DividendPayables" xlink:to="loc_san_DividendosACuenta_f7df688e-7e1f-4775-95d3-c989fddea828" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_EjercicioOVencimientoDeOtrosInstrumentosDePatrimonioEmitidos_3663cf91-ddaa-448b-9039-02e9821231cc" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_EjercicioOVencimientoDeOtrosInstrumentosDePatrimonioEmitidos"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:to="loc_san_EjercicioOVencimientoDeOtrosInstrumentosDePatrimonioEmitidos_3663cf91-ddaa-448b-9039-02e9821231cc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_EmisionDeAccionesPreferentes_103fb523-496f-4f93-9665-2bc6c55b5a31" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_EmisionDeAccionesPreferentes"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssueOfEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssueOfEquity"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IssueOfEquity" xlink:to="loc_san_EmisionDeAccionesPreferentes_103fb523-496f-4f93-9665-2bc6c55b5a31" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_EmisionDeOtrosInstrumentosDePatrimonio_7fe58086-5c3a-4ae6-8261-cdcfc9e85a82" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_EmisionDeOtrosInstrumentosDePatrimonio"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IssueOfEquity" xlink:to="loc_san_EmisionDeOtrosInstrumentosDePatrimonio_7fe58086-5c3a-4ae6-8261-cdcfc9e85a82" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_EntradasDeEfectivoDeActividadesDeFinanciacion_6c843523-fe81-40ac-b7ca-9b8a46f12884" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_EntradasDeEfectivoDeActividadesDeFinanciacion"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xlink:to="loc_san_EntradasDeEfectivoDeActividadesDeFinanciacion_6c843523-fe81-40ac-b7ca-9b8a46f12884" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasOPerdidasAlDarDeBajaEnCuentasActivosYPasivosFinancierosNoValoradosAValorRazonableConCambiosEnResultadosNetas_2e84d503-9fac-4c9f-a538-1fb0b3c26c04" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasOPerdidasAlDarDeBajaEnCuentasActivosYPasivosFinancierosNoValoradosAValorRazonableConCambiosEnResultadosNetas"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GrossProfit" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GrossProfit"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_GrossProfit" xlink:to="loc_san_GananciasOPerdidasAlDarDeBajaEnCuentasActivosYPasivosFinancierosNoValoradosAValorRazonableConCambiosEnResultadosNetas_2e84d503-9fac-4c9f-a538-1fb0b3c26c04" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasOPerdidasDeValorContabilizadasEnElPatrimonioNetoInstrumentosDeCoberturaElementosNoDesignados_a9df5c0a-d2e9-4f8e-a1f1-90e362a5078e" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasOPerdidasDeValorContabilizadasEnElPatrimonioNetoInstrumentosDeCoberturaElementosNoDesignados"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:to="loc_san_GananciasOPerdidasDeValorContabilizadasEnElPatrimonioNetoInstrumentosDeCoberturaElementosNoDesignados_a9df5c0a-d2e9-4f8e-a1f1-90e362a5078e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasOPerdidasNetasDeContabilidadDeCobertura_67b46dbb-0b45-4cd6-9290-be9ef6ba4e3e" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasOPerdidasNetasDeContabilidadDeCobertura"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss" xlink:to="loc_san_GananciasOPerdidasNetasDeContabilidadDeCobertura_67b46dbb-0b45-4cd6-9290-be9ef6ba4e3e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasOPerdidasProcedentesDeActivosNoCorrientesYGruposEnajenablesDeElementosClasificadosComoMantenidosParaLaVentaNoAdmisiblesComoActividadesInterrumpidas_6289da41-6503-473e-b0b0-3c902ec53b43" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasOPerdidasProcedentesDeActivosNoCorrientesYGruposEnajenablesDeElementosClasificadosComoMantenidosParaLaVentaNoAdmisiblesComoActividadesInterrumpidas"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ProfitLossBeforeTax" xlink:to="loc_san_GananciasOPerdidasProcedentesDeActivosNoCorrientesYGruposEnajenablesDeElementosClasificadosComoMantenidosParaLaVentaNoAdmisiblesComoActividadesInterrumpidas_6289da41-6503-473e-b0b0-3c902ec53b43" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasOPerdidasSobreActivosYPasivosFinancierosAValorRazonableConCambiosEnResultados_7b43d94b-0e15-4f02-9065-d26764e084fc" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasOPerdidasSobreActivosYPasivosFinancierosAValorRazonableConCambiosEnResultados"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_GrossProfit" xlink:to="loc_san_GananciasOPerdidasSobreActivosYPasivosFinancierosAValorRazonableConCambiosEnResultados_7b43d94b-0e15-4f02-9065-d26764e084fc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasPerdidasDeValorContabilizadasEnElPatrimonioNetoActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos_7a1ca07a-3ca4-41fc-8a80-f80665038561" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasPerdidasDeValorContabilizadasEnElPatrimonioNetoActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:to="loc_san_GananciasPerdidasDeValorContabilizadasEnElPatrimonioNetoActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos_7a1ca07a-3ca4-41fc-8a80-f80665038561" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasPerdidasPorEnajenacionesDeActivosNoFinancierosNeto_289a7262-17dc-4a8a-9fd9-04a9310912d7" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasPerdidasPorEnajenacionesDeActivosNoFinancierosNeto"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ProfitLoss" xlink:to="loc_san_GananciasPerdidasPorEnajenacionesDeActivosNoFinancierosNeto_289a7262-17dc-4a8a-9fd9-04a9310912d7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GananciasPerdidasSobreActivosYPasivosFinancierosMantenidosParaNegociar_3bef55e2-8f16-4a8e-a8b9-cbc369516c6e" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GananciasPerdidasSobreActivosYPasivosFinancierosMantenidosParaNegociar"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_GrossProfit" xlink:to="loc_san_GananciasPerdidasSobreActivosYPasivosFinancierosMantenidosParaNegociar_3bef55e2-8f16-4a8e-a8b9-cbc369516c6e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_GastosDeContratosDeSeguroYReaseguroReconocidosEnPerdidasYGanancias_32633396-a9da-4c1b-a7d3-4657dccf044c" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_GastosDeContratosDeSeguroYReaseguroReconocidosEnPerdidasYGanancias"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InsuranceServiceResult" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InsuranceServiceResult"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_InsuranceServiceResult" xlink:to="loc_san_GastosDeContratosDeSeguroYReaseguroReconocidosEnPerdidasYGanancias_32633396-a9da-4c1b-a7d3-4657dccf044c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ImporteTransferidoEnLibrosInicialDeLosElementosCubiertosAntesDeImpuestos_2e748732-c5be-4e49-9963-f29517116072" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ImporteTransferidoEnLibrosInicialDeLosElementosCubiertosAntesDeImpuestos"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:to="loc_san_ImporteTransferidoEnLibrosInicialDeLosElementosCubiertosAntesDeImpuestos_2e748732-c5be-4e49-9963-f29517116072" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_IncrementoDecrementoPorOtrasVariacionesDelPatrimonioNeto_d7738341-26af-4c27-bc93-5fddb2a5d175" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_IncrementoDecrementoPorOtrasVariacionesDelPatrimonioNeto"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:to="loc_san_IncrementoDecrementoPorOtrasVariacionesDelPatrimonioNeto_d7738341-26af-4c27-bc93-5fddb2a5d175" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_IngresosDeContratosDeSeguroYReaseguroReconocidosEnPerdidasYGanancias_df4e101c-1eab-4bc2-8d13-a99c493cffb7" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_IngresosDeContratosDeSeguroYReaseguroReconocidosEnPerdidasYGanancias"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_InsuranceServiceResult" xlink:to="loc_san_IngresosDeContratosDeSeguroYReaseguroReconocidosEnPerdidasYGanancias_df4e101c-1eab-4bc2-8d13-a99c493cffb7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_InstrumentosDeCoberturaElementosNoDesignadosOtroResultadoGlobalAntesDeImpuestos_e6edc527-0bc9-49ae-9c17-55090095993a" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_InstrumentosDeCoberturaElementosNoDesignadosOtroResultadoGlobalAntesDeImpuestos"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:to="loc_san_InstrumentosDeCoberturaElementosNoDesignadosOtroResultadoGlobalAntesDeImpuestos_e6edc527-0bc9-49ae-9c17-55090095993a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrasReclasificacionesActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos_a3e44285-31aa-4247-973c-180d8445a816" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrasReclasificacionesActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:to="loc_san_OtrasReclasificacionesActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos_a3e44285-31aa-4247-973c-180d8445a816" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrasReclasificacionesInstrumentosDeCoberturaElementosNoDesignados_7766cf3e-7c47-4f18-98ae-92a2dc82a590" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrasReclasificacionesInstrumentosDeCoberturaElementosNoDesignados"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:to="loc_san_OtrasReclasificacionesInstrumentosDeCoberturaElementosNoDesignados_7766cf3e-7c47-4f18-98ae-92a2dc82a590" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrasReclasificacionesInstrumentosDeDeudaAValorRazonableConCambiosEnOtroResultadoGlobal_acfaf35a-efb6-4f5f-b3bc-df6f7a08f84d" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrasReclasificacionesInstrumentosDeDeudaAValorRazonableConCambiosEnOtroResultadoGlobal"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax" xlink:to="loc_san_OtrasReclasificacionesInstrumentosDeDeudaAValorRazonableConCambiosEnOtroResultadoGlobal_acfaf35a-efb6-4f5f-b3bc-df6f7a08f84d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrasReservas_d8c2caf8-5e3d-4a5b-a1dd-a3cf1212f09c" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrasReservas"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherReserves" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherReserves"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherReserves" xlink:to="loc_san_OtrasReservas_d8c2caf8-5e3d-4a5b-a1dd-a3cf1212f09c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtroResultadoGlobalAcumuladoAtribuibleAParticipacionesNoDominantes_5845a1c0-892e-4e99-825d-40087e7353ef" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtroResultadoGlobalAcumuladoAtribuibleAParticipacionesNoDominantes"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedOtherComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AccumulatedOtherComprehensiveIncome"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_AccumulatedOtherComprehensiveIncome" xlink:to="loc_san_OtroResultadoGlobalAcumuladoAtribuibleAParticipacionesNoDominantes_5845a1c0-892e-4e99-825d-40087e7353ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtroResultadoGlobalAcumuladoElementosQueNoSeReclasificaranEnResultados_cd060251-3805-4378-9972-a08ac610edf9" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtroResultadoGlobalAcumuladoElementosQueNoSeReclasificaranEnResultados"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_AccumulatedOtherComprehensiveIncome" xlink:to="loc_san_OtroResultadoGlobalAcumuladoElementosQueNoSeReclasificaranEnResultados_cd060251-3805-4378-9972-a08ac610edf9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtroResultadoGlobalAcumuladoElementosQuePuedenReclasificarseEnResultados_137da6e2-dfd2-4bed-b55a-76ec0e0168eb" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtroResultadoGlobalAcumuladoElementosQuePuedenReclasificarseEnResultados"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_AccumulatedOtherComprehensiveIncome" xlink:to="loc_san_OtroResultadoGlobalAcumuladoElementosQuePuedenReclasificarseEnResultados_137da6e2-dfd2-4bed-b55a-76ec0e0168eb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtroResultadoGlobalAntesDeImpuestosActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVenta_5512e9ab-86a2-4732-b306-7288ae6a1337" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtroResultadoGlobalAntesDeImpuestosActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVenta"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:to="loc_san_OtroResultadoGlobalAntesDeImpuestosActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVenta_5512e9ab-86a2-4732-b306-7288ae6a1337" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosAjustesPorReclasificacionEnCoberturasDeFlujoDeEfectivoAntesDeImpuestos_122263ab-712b-4edd-af39-59ee29354c22" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosAjustesPorReclasificacionEnCoberturasDeFlujoDeEfectivoAntesDeImpuestos"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax" xlink:to="loc_san_OtrosAjustesPorReclasificacionEnCoberturasDeFlujoDeEfectivoAntesDeImpuestos_122263ab-712b-4edd-af39-59ee29354c22" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosAjustesPorReclasificacionEnCoberturasDeInversionesNetasEnOperacionesEnElExtranjeroAntesDeImpuestos_45699729-7570-4291-8cd4-dcf665581521" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosAjustesPorReclasificacionEnCoberturasDeInversionesNetasEnOperacionesEnElExtranjeroAntesDeImpuestos"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:to="loc_san_OtrosAjustesPorReclasificacionEnCoberturasDeInversionesNetasEnOperacionesEnElExtranjeroAntesDeImpuestos_45699729-7570-4291-8cd4-dcf665581521" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosAjustesPorReclasificacionPorDiferenciasDeCambioPorConversionAntesDeImpuestos_b2fdff9b-59a2-4fc5-916a-bc04aec97a53" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosAjustesPorReclasificacionPorDiferenciasDeCambioPorConversionAntesDeImpuestos"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationBeforeTax" xlink:to="loc_san_OtrosAjustesPorReclasificacionPorDiferenciasDeCambioPorConversionAntesDeImpuestos_b2fdff9b-59a2-4fc5-916a-bc04aec97a53" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosCobrosRelacionadosConActividadesDeFinanciacion_cd57a05e-bf49-4515-8d7c-2d051d51b6df" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosCobrosRelacionadosConActividadesDeFinanciacion"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xlink:to="loc_san_OtrosCobrosRelacionadosConActividadesDeFinanciacion_cd57a05e-bf49-4515-8d7c-2d051d51b6df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosCobrosRelacionadosConActividadesDeInversion_08e428f5-409f-466b-abb0-3c240309f005" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosCobrosRelacionadosConActividadesDeInversion"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xlink:to="loc_san_OtrosCobrosRelacionadosConActividadesDeInversion_08e428f5-409f-466b-abb0-3c240309f005" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosElementosExcluyendoElResultadoGlobalAcumuladoParticipacionesNoDominantes_ea216059-f4ed-4d3d-8a86-60e03925d6da" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosElementosExcluyendoElResultadoGlobalAcumuladoParticipacionesNoDominantes"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncontrollingInterests" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncontrollingInterests"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_NoncontrollingInterests" xlink:to="loc_san_OtrosElementosExcluyendoElResultadoGlobalAcumuladoParticipacionesNoDominantes_ea216059-f4ed-4d3d-8a86-60e03925d6da" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosGastosDeAdministracion_7c95911a-1a51-41a5-82a3-1623188171d1" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosGastosDeAdministracion"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdministrativeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_AdministrativeExpense" xlink:to="loc_san_OtrosGastosDeAdministracion_7c95911a-1a51-41a5-82a3-1623188171d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosGastosDeExplotacion_8d7496bd-a64a-4f01-896c-59b4f70f1338" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosGastosDeExplotacion"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherOperatingIncomeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherOperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherOperatingIncomeExpense" xlink:to="loc_san_OtrosGastosDeExplotacion_8d7496bd-a64a-4f01-896c-59b4f70f1338" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosIngresosDeExplotacion_2f188894-0fc1-40da-a518-b76738ccc941" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosIngresosDeExplotacion"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherOperatingIncomeExpense" xlink:to="loc_san_OtrosIngresosDeExplotacion_2f188894-0fc1-40da-a518-b76738ccc941" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosInstrumentosDePatrimonioEmitidos_f3da2751-10d1-4010-8056-38be6d756b2c" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosInstrumentosDePatrimonioEmitidos"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReserveOfEquityComponentOfConvertibleInstruments" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReserveOfEquityComponentOfConvertibleInstruments"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ReserveOfEquityComponentOfConvertibleInstruments" xlink:to="loc_san_OtrosInstrumentosDePatrimonioEmitidos_f3da2751-10d1-4010-8056-38be6d756b2c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosPagosRelacionadosConActividadesDeFinanciacion_efe4f8a2-7020-4c4b-bac4-7521daa53f75" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosPagosRelacionadosConActividadesDeFinanciacion"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xlink:to="loc_san_OtrosPagosRelacionadosConActividadesDeFinanciacion_efe4f8a2-7020-4c4b-bac4-7521daa53f75" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_OtrosPagosRelacionadosConActividadesDeInversion_6f90e325-1a65-4f12-a849-a43dde309a7a" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_OtrosPagosRelacionadosConActividadesDeInversion"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xlink:to="loc_san_OtrosPagosRelacionadosConActividadesDeInversion_6f90e325-1a65-4f12-a849-a43dde309a7a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_PasivosPorImpuestos_cec0b7fd-db1a-442f-960d-e9ef4c1cfca3" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_PasivosPorImpuestos"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Liabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_Liabilities" xlink:to="loc_san_PasivosPorImpuestos_cec0b7fd-db1a-442f-960d-e9ef4c1cfca3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_PatrimonioNetoAtribuibleALosPropietariosDeLaDominanteExcluidoElOtroResultadoGlobalAcumulado_4feb9026-816e-4690-be5d-4e5edf92fa1a" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_PatrimonioNetoAtribuibleALosPropietariosDeLaDominanteExcluidoElOtroResultadoGlobalAcumulado"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParent" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParent"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParent" xlink:to="loc_san_PatrimonioNetoAtribuibleALosPropietariosDeLaDominanteExcluidoElOtroResultadoGlobalAcumulado_4feb9026-816e-4690-be5d-4e5edf92fa1a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_PerdidaPorDeterioroOReversionDelDeterioroReconocidoEnResultadosActivosTangibles_84481578-4638-4472-bf9e-186cd3070e8e" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_PerdidaPorDeterioroOReversionDelDeterioroReconocidoEnResultadosActivosTangibles"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:to="loc_san_PerdidaPorDeterioroOReversionDelDeterioroReconocidoEnResultadosActivosTangibles_84481578-4638-4472-bf9e-186cd3070e8e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_PerdidaPorDeterioroOReversionDelDeterioroReconocidoEnResultadosOtrosActivosNoFinancierosNeto_7bab06f6-d854-499e-96ac-6122808de5da" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_PerdidaPorDeterioroOReversionDelDeterioroReconocidoEnResultadosOtrosActivosNoFinancierosNeto"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:to="loc_san_PerdidaPorDeterioroOReversionDelDeterioroReconocidoEnResultadosOtrosActivosNoFinancierosNeto_7bab06f6-d854-499e-96ac-6122808de5da" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ProvisionesYReversionDeProvisiones_9aaf2382-df9c-4fa7-ba35-082c3bfad164" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ProvisionesYReversionDeProvisiones"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Provisions" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Provisions"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_Provisions" xlink:to="loc_san_ProvisionesYReversionDeProvisiones_9aaf2382-df9c-4fa7-ba35-082c3bfad164" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ReclasificacionDeInstrumentosFinancierosDelPasivoAlPatrimonioNeto_c65ade2f-5317-4248-8c75-77ff6ccd9ecc" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ReclasificacionDeInstrumentosFinancierosDelPasivoAlPatrimonioNeto"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:to="loc_san_ReclasificacionDeInstrumentosFinancierosDelPasivoAlPatrimonioNeto_c65ade2f-5317-4248-8c75-77ff6ccd9ecc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ReclasificacionDeInstrumentosFinancierosDelPatrimonioNetoAlPasivo_7581c381-5f54-4a4f-b3ed-a2dbebf1e953" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ReclasificacionDeInstrumentosFinancierosDelPatrimonioNetoAlPasivo"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:to="loc_san_ReclasificacionDeInstrumentosFinancierosDelPatrimonioNetoAlPasivo_7581c381-5f54-4a4f-b3ed-a2dbebf1e953" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ReservasOPerdidasAcumuladasDeInversionesEnNegociosConjuntosYAsociadas_d9379387-bac1-4659-82cd-27e3c03ef03c" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ReservasOPerdidasAcumuladasDeInversionesEnNegociosConjuntosYAsociadas"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherReserves" xlink:to="loc_san_ReservasOPerdidasAcumuladasDeInversionesEnNegociosConjuntosYAsociadas_d9379387-bac1-4659-82cd-27e3c03ef03c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_ResultadoAtribuibleALosPropietariosDeLaDominante_b061d3ae-3250-49f1-b665-32610671e98e" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_ResultadoAtribuibleALosPropietariosDeLaDominante"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ProfitLoss" xlink:to="loc_san_ResultadoAtribuibleALosPropietariosDeLaDominante_b061d3ae-3250-49f1-b665-32610671e98e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_SalidasDeEfectivoDeActividadesDeFinanciacion_5fee9642-4625-4bd8-8819-17d50970ad63" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_SalidasDeEfectivoDeActividadesDeFinanciacion"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xlink:to="loc_san_SalidasDeEfectivoDeActividadesDeFinanciacion_5fee9642-4625-4bd8-8819-17d50970ad63" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_TransferenciasEntreComponentesDelPatrimonioNeto_605cca6a-e981-4ba2-af0e-eda2a1414fed" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_TransferenciasEntreComponentesDelPatrimonioNeto"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ChangesInEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ChangesInEquity"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ChangesInEquity" xlink:to="loc_san_TransferenciasEntreComponentesDelPatrimonioNeto_605cca6a-e981-4ba2-af0e-eda2a1414fed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_TransferidoAResultadosInstrumentosDeCoberturaElementosNoDesignados_b14e169e-f9da-4a10-9eb1-c9917b561956" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_TransferidoAResultadosInstrumentosDeCoberturaElementosNoDesignados"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:to="loc_san_TransferidoAResultadosInstrumentosDeCoberturaElementosNoDesignados_b14e169e-f9da-4a10-9eb1-c9917b561956" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_san_TransferidosAResultadosActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos_c9cde824-9c88-4312-b48a-10fc21271694" xlink:href="5493006QMFDDMYWIAM13-2025-12-31.xsd#san_TransferidosAResultadosActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:to="loc_san_TransferidosAResultadosActivosNoCorrientesYGruposEnajenablesDeElementosMantenidosParaLaVentaAntesDeImpuestos_c9cde824-9c88-4312-b48a-10fc21271694" xlink:type="arc" order="1"/>
  </link:definitionLink>
</link:linkbase>
