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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:ca2ac68d-19a7-4d49-a4f3-6f1c70c952ed,g:e8fcaa52-b474-426c-ab1b-d779bb9e8445-->
<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.ferrovial.com/role/StatementofchangesinequityStatement" xlink:type="simple" xlink:href="fer-2025-12-31.xsd#StatementofchangesinequityStatement"/>
  <link:definitionLink xlink:role="http://www.ferrovial.com/role/StatementofchangesinequityStatement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityAbstract_883f6655-8813-42bf-8ca8-596836704407" 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_61fe1736-7c0b-4116-9f27-63b36ccdafd0" 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_883f6655-8813-42bf-8ca8-596836704407" xlink:to="loc_ifrs-full_StatementOfChangesInEquityTable_61fe1736-7c0b-4116-9f27-63b36ccdafd0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="scenario"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfEquityAxis_476044a9-ef57-4c66-be09-6b6f71693147" 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_61fe1736-7c0b-4116-9f27-63b36ccdafd0" xlink:to="loc_ifrs-full_ComponentsOfEquityAxis_476044a9-ef57-4c66-be09-6b6f71693147" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfEquityDomain_971c3beb-4784-48af-8a14-d5c2b4e8dc84" 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_476044a9-ef57-4c66-be09-6b6f71693147" xlink:to="loc_ifrs-full_ComponentsOfEquityDomain_971c3beb-4784-48af-8a14-d5c2b4e8dc84" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParentMember_20f58ab8-d7a7-4a56-8031-f532373834d2" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_971c3beb-4784-48af-8a14-d5c2b4e8dc84" xlink:to="loc_ifrs-full_EquityAttributableToOwnersOfParentMember_20f58ab8-d7a7-4a56-8031-f532373834d2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssuedCapitalMember_6d641286-6560-4849-aeb8-22c33e0a5b05" 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_EquityAttributableToOwnersOfParentMember_20f58ab8-d7a7-4a56-8031-f532373834d2" xlink:to="loc_ifrs-full_IssuedCapitalMember_6d641286-6560-4849-aeb8-22c33e0a5b05" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SharePremiumMember_93b9a632-1492-45ac-bd7d-cbc2bd0fb4ec" 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_EquityAttributableToOwnersOfParentMember_20f58ab8-d7a7-4a56-8031-f532373834d2" xlink:to="loc_ifrs-full_SharePremiumMember_93b9a632-1492-45ac-bd7d-cbc2bd0fb4ec" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TreasurySharesMember_3cf55d0e-8346-47c5-bbd2-ad15b04f1a18" 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_EquityAttributableToOwnersOfParentMember_20f58ab8-d7a7-4a56-8031-f532373834d2" xlink:to="loc_ifrs-full_TreasurySharesMember_3cf55d0e-8346-47c5-bbd2-ad15b04f1a18" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherEquitySecuritiesMember_c391ecfc-cf45-429f-9d5c-09f872dcba12" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherEquitySecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParentMember_20f58ab8-d7a7-4a56-8031-f532373834d2" xlink:to="loc_ifrs-full_OtherEquitySecuritiesMember_c391ecfc-cf45-429f-9d5c-09f872dcba12" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_AccumulatedOtherComprehensiveIncomeAndOtherValuationAdjustments_019c8ba5-c56a-701c-975b-e0c918ff5290" xlink:href="fer-2025-12-31.xsd#fer_AccumulatedOtherComprehensiveIncomeAndOtherValuationAdjustments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParentMember_20f58ab8-d7a7-4a56-8031-f532373834d2" xlink:to="loc_fer_AccumulatedOtherComprehensiveIncomeAndOtherValuationAdjustments_019c8ba5-c56a-701c-975b-e0c918ff5290" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_RetainedEarningsAndOtherReserves_877cc07a-70f6-4497-998d-d141ef2272c2" xlink:href="fer-2025-12-31.xsd#fer_RetainedEarningsAndOtherReserves"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParentMember_20f58ab8-d7a7-4a56-8031-f532373834d2" xlink:to="loc_fer_RetainedEarningsAndOtherReserves_877cc07a-70f6-4497-998d-d141ef2272c2" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncontrollingInterestsMember_b15fdad9-754f-4b9f-966d-9dbcefe4bff0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncontrollingInterestsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_971c3beb-4784-48af-8a14-d5c2b4e8dc84" xlink:to="loc_ifrs-full_NoncontrollingInterestsMember_b15fdad9-754f-4b9f-966d-9dbcefe4bff0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityLineItems_1c89bbd4-0ab1-47b8-8bc2-0c8bd590ae13" 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_883f6655-8813-42bf-8ca8-596836704407" xlink:to="loc_ifrs-full_StatementOfChangesInEquityLineItems_1c89bbd4-0ab1-47b8-8bc2-0c8bd590ae13" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity_1e2fb28e-111f-4543-91d2-34ec01bd201e" 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_1c89bbd4-0ab1-47b8-8bc2-0c8bd590ae13" xlink:to="loc_ifrs-full_Equity_1e2fb28e-111f-4543-91d2-34ec01bd201e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ChangesInEquityAbstract_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" 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_1c89bbd4-0ab1-47b8-8bc2-0c8bd590ae13" xlink:to="loc_ifrs-full_ChangesInEquityAbstract_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_MergerImpact_414cce73-378f-446a-bf9d-1593211eec3a" xlink:href="fer-2025-12-31.xsd#fer_MergerImpact"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_fer_MergerImpact_414cce73-378f-446a-bf9d-1593211eec3a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss_e16480bb-3f7d-40ba-aa39-e8401a8181bc" 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_ChangesInEquityAbstract_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_ifrs-full_ProfitLoss_e16480bb-3f7d-40ba-aa39-e8401a8181bc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeAndExpensesRecognisedDirectlyInEquityNetOfTaxes_4376c12a-25c0-492c-9144-e1490a23af2b" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeAndExpensesRecognisedDirectlyInEquityNetOfTaxes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_fer_OtherComprehensiveIncomeAndExpensesRecognisedDirectlyInEquityNetOfTaxes_4376c12a-25c0-492c-9144-e1490a23af2b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_TotalOtherComprehensiveIncomeReclassifiedToProfitOrLossNetOfTax_2eb58c02-d26c-46b3-abc4-2fec0d7edf67" xlink:href="fer-2025-12-31.xsd#fer_TotalOtherComprehensiveIncomeReclassifiedToProfitOrLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_fer_TotalOtherComprehensiveIncomeReclassifiedToProfitOrLossNetOfTax_2eb58c02-d26c-46b3-abc4-2fec0d7edf67" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncome_866c5d2d-1b3d-4304-8dcd-c8a8afab8b15" 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_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_ifrs-full_ComprehensiveIncome_866c5d2d-1b3d-4304-8dcd-c8a8afab8b15" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParent_019c8b19-3ed3-7b67-8289-99c8185e7e39" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParent_019c8b19-3ed3-7b67-8289-99c8185e7e39" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsRecognisedAsDistributionsToNoncontrollingInterests_cf88e6d9-7c11-4a02-a034-727b5b9e5d58" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsRecognisedAsDistributionsToNoncontrollingInterests"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_ifrs-full_DividendsRecognisedAsDistributionsToNoncontrollingInterests_cf88e6d9-7c11-4a02-a034-727b5b9e5d58" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_IncreaseDecreaseInTreasuryShareRepurchaseInEquity_5f3f5e53-2ca8-4b08-8a23-ccd427ee6fb0" xlink:href="fer-2025-12-31.xsd#fer_IncreaseDecreaseInTreasuryShareRepurchaseInEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_fer_IncreaseDecreaseInTreasuryShareRepurchaseInEquity_5f3f5e53-2ca8-4b08-8a23-ccd427ee6fb0" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_ShareholderRemuneration_c48128ab-6706-4209-bc64-70d4da03d365" xlink:href="fer-2025-12-31.xsd#fer_ShareholderRemuneration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_fer_ShareholderRemuneration_c48128ab-6706-4209-bc64-70d4da03d365" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangeInEquityOfSubsidiaries_efee0de8-a5c2-463d-82be-ab97e17cc77c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangeInEquityOfSubsidiaries"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughChangeInEquityOfSubsidiaries_efee0de8-a5c2-463d-82be-ab97e17cc77c" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_5e61aeff-590a-4250-80ba-b8cf6c4afb44" 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_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_5e61aeff-590a-4250-80ba-b8cf6c4afb44" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherTreasuryRepurchaseInEquityInstruments_d38952f7-bed3-4624-983b-8698d2bef8b7" xlink:href="fer-2025-12-31.xsd#fer_OtherTreasuryRepurchaseInEquityInstruments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_fer_OtherTreasuryRepurchaseInEquityInstruments_d38952f7-bed3-4624-983b-8698d2bef8b7" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_c64418f1-42b6-4055-87b4-868d5ede4054" 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_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_c64418f1-42b6-4055-87b4-868d5ede4054" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherEquityTransactions_2a5017d4-76e0-4828-9149-67c7f685306a" xlink:href="fer-2025-12-31.xsd#fer_OtherEquityTransactions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_fer_OtherEquityTransactions_2a5017d4-76e0-4828-9149-67c7f685306a" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_PerpetualSubordinatedBonds_3a6cca1e-b0ba-4019-8c08-d6215daa6e58" xlink:href="fer-2025-12-31.xsd#fer_PerpetualSubordinatedBonds"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_fer_PerpetualSubordinatedBonds_3a6cca1e-b0ba-4019-8c08-d6215daa6e58" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl_1f3b50a8-a3fa-4976-a633-7306d8de65a9" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_1ca560b9-9e8b-4817-ba2e-afdebe6b4e27" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl_1f3b50a8-a3fa-4976-a633-7306d8de65a9" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity_8bb37c0a-9f0d-4c7d-8819-c764fd2ff9e1" 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="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_NoncurrentAssets_27b0a181-8246-49b1-a9d2-15b44a3d9db5NotDimensionallyQualified" 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://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentAssets_27b0a181-8246-49b1-a9d2-15b44a3d9db5NotDimensionallyQualified" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Goodwill_dc0e9567-488e-4afa-add3-f4314b934200NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_Goodwill_dc0e9567-488e-4afa-add3-f4314b934200NotDimensionallyQualified" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill_3098c096-66d0-4b12-9ad6-3dab0ce4085bNotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill_3098c096-66d0-4b12-9ad6-3dab0ce4085bNotDimensionallyQualified" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_FixedAssetsInInfrastructureProjects_6c38868c-4d4e-44ed-b59a-1b41a9ccc5ecNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_FixedAssetsInInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_FixedAssetsInInfrastructureProjects_6c38868c-4d4e-44ed-b59a-1b41a9ccc5ecNotDimensionallyQualified" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_FixedAssetsInInfrastructureProjectsIntangibleAssetModel_13437f3e-7d9d-46ba-85b9-dd8991988984NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_FixedAssetsInInfrastructureProjectsIntangibleAssetModel"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_FixedAssetsInInfrastructureProjectsIntangibleAssetModel_13437f3e-7d9d-46ba-85b9-dd8991988984NotDimensionallyQualified" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_InvestmentsInInfrastructureProjectsFinancialAssetModel_b3010a8f-c664-4f17-a83a-1a86f6042163NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_InvestmentsInInfrastructureProjectsFinancialAssetModel"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_InvestmentsInInfrastructureProjectsFinancialAssetModel_b3010a8f-c664-4f17-a83a-1a86f6042163NotDimensionallyQualified" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipment_69cd898b-451a-48c5-bf7b-6f3ee3de3280NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PropertyPlantAndEquipment_69cd898b-451a-48c5-bf7b-6f3ee3de3280NotDimensionallyQualified" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RightofuseAssets_bf1bf2a0-0881-4b31-9e46-4ca9d8e172e5NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RightofuseAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_RightofuseAssets_bf1bf2a0-0881-4b31-9e46-4ca9d8e172e5NotDimensionallyQualified" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod_09e1d512-4022-4cfe-a7ff-724498977d41NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod_09e1d512-4022-4cfe-a7ff-724498977d41NotDimensionallyQualified" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherNonCurrentFinancialAssetsOtherThanDerivativesAndInfrastructureProjects_bc248314-234e-41e6-9526-c596c458ee07NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_OtherNonCurrentFinancialAssetsOtherThanDerivativesAndInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_OtherNonCurrentFinancialAssetsOtherThanDerivativesAndInfrastructureProjects_bc248314-234e-41e6-9526-c596c458ee07NotDimensionallyQualified" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentReceivablesDueFromAssociates_6b65c9de-f065-4fb8-8b88-64c7bf9665b3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentReceivablesDueFromAssociates"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentReceivablesDueFromAssociates_6b65c9de-f065-4fb8-8b88-64c7bf9665b3NotDimensionallyQualified" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentRestrictedCashAndCashEquivalents_551afa3a-4c51-49c9-9211-32132490512eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentRestrictedCashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentRestrictedCashAndCashEquivalents_551afa3a-4c51-49c9-9211-32132490512eNotDimensionallyQualified" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherNoncurrentFinancialAssets_582dc52d-10ad-4102-93b7-142e026d5d22NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherNoncurrentFinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherNoncurrentFinancialAssets_582dc52d-10ad-4102-93b7-142e026d5d22NotDimensionallyQualified" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxAssets_d94f1e4b-93ef-4a27-b530-21e2a632bd94NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DeferredTaxAssets_d94f1e4b-93ef-4a27-b530-21e2a632bd94NotDimensionallyQualified" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentDerivativeFinancialAssets_c4fc5739-248a-42ce-86f5-f5e46dfd6223NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentDerivativeFinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentDerivativeFinancialAssets_c4fc5739-248a-42ce-86f5-f5e46dfd6223NotDimensionallyQualified" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentAssets_a2aad30f-909e-4705-ae07-4fce11eb6d5eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentAssets_a2aad30f-909e-4705-ae07-4fce11eb6d5eNotDimensionallyQualified" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Inventories_427e965e-3004-44be-a075-a51e67b945a8NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_Inventories_427e965e-3004-44be-a075-a51e67b945a8NotDimensionallyQualified" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxAssetsCurrent_667bfa0c-fdb3-41c6-a67a-8a04d637ff53NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentTaxAssetsCurrent_667bfa0c-fdb3-41c6-a67a-8a04d637ff53NotDimensionallyQualified" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherCurrentReceivables_b8b50ffa-36d5-4f45-b0cb-b100251ef90eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentReceivables"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_TradeAndOtherCurrentReceivables_b8b50ffa-36d5-4f45-b0cb-b100251ef90eNotDimensionallyQualified" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTradeReceivables_d96f1d26-3033-4d2d-a450-6ca3e749e899NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTradeReceivables"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentTradeReceivables_d96f1d26-3033-4d2d-a450-6ca3e749e899NotDimensionallyQualified" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherCurrentReceivables_c9f44b1d-f8c5-4034-bbe4-b1c1556a7a5aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCurrentReceivables"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherCurrentReceivables_c9f44b1d-f8c5-4034-bbe4-b1c1556a7a5aNotDimensionallyQualified" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalents_75b0b454-974a-47d2-bb88-ace69d194facNotDimensionallyQualified" 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_75b0b454-974a-47d2-bb88-ace69d194facNotDimensionallyQualified" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_CashAndCashEquivalentsInfrastructureProjects_27695524-51ea-4757-8d1d-88b1bff87b5bNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_CashAndCashEquivalentsInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_CashAndCashEquivalentsInfrastructureProjects_27695524-51ea-4757-8d1d-88b1bff87b5bNotDimensionallyQualified" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_CurrentRestrictedCashAndCashEquivalentsInfrastructureProjects_8ec524e1-bbcf-4273-b0a6-e9a5bf1dbc44NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_CurrentRestrictedCashAndCashEquivalentsInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_CurrentRestrictedCashAndCashEquivalentsInfrastructureProjects_8ec524e1-bbcf-4273-b0a6-e9a5bf1dbc44NotDimensionallyQualified" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherCashAndCashEquivalentsInfrastructureProjects_2f52efd0-ae1c-4867-abc6-0ce24a135be4NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_OtherCashAndCashEquivalentsInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_OtherCashAndCashEquivalentsInfrastructureProjects_2f52efd0-ae1c-4867-abc6-0ce24a135be4NotDimensionallyQualified" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_CashAndCashEquivalentsExcludingInfrastructureProjects_d14ad5ee-c704-4040-bee0-134f788b0cafNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_CashAndCashEquivalentsExcludingInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_CashAndCashEquivalentsExcludingInfrastructureProjects_d14ad5ee-c704-4040-bee0-134f788b0cafNotDimensionallyQualified" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentDerivativeFinancialAssets_95faa932-4e3d-41ed-a96b-08a1d7ce3392NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentDerivativeFinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentDerivativeFinancialAssets_95faa932-4e3d-41ed-a96b-08a1d7ce3392NotDimensionallyQualified" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale_aee99637-e0f6-48ed-9147-199e97af9be1NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale_aee99637-e0f6-48ed-9147-199e97af9be1NotDimensionallyQualified" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Assets_d13c8d70-a695-43b5-aaf9-b4d47672bb6dNotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_Assets_d13c8d70-a695-43b5-aaf9-b4d47672bb6dNotDimensionallyQualified" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity_2ae3f750-a562-40b2-a811-429526766287NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_Equity_2ae3f750-a562-40b2-a811-429526766287NotDimensionallyQualified" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParent_7f240e07-5be4-400a-bdb5-4ff7759025a6NotDimensionallyQualified" 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://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_EquityAttributableToOwnersOfParent_7f240e07-5be4-400a-bdb5-4ff7759025a6NotDimensionallyQualified" xlink:type="arc" order="30"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncontrollingInterests_d10a49eb-1d43-4fe1-9cdd-8b316b88a604NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncontrollingInterests_d10a49eb-1d43-4fe1-9cdd-8b316b88a604NotDimensionallyQualified" xlink:type="arc" order="31"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentLiabilities_a4ff37ff-e9e2-4cb8-852a-8e7a7e46e7ebNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentLiabilities_a4ff37ff-e9e2-4cb8-852a-8e7a7e46e7ebNotDimensionallyQualified" xlink:type="arc" order="32"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentDeferredIncomeOtherThanNoncurrentContractLiabilities_b89cf776-c5d1-4aa1-93d2-7e38a88fc605NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentDeferredIncomeOtherThanNoncurrentContractLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentDeferredIncomeOtherThanNoncurrentContractLiabilities_b89cf776-c5d1-4aa1-93d2-7e38a88fc605NotDimensionallyQualified" xlink:type="arc" order="33"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentProvisionsForEmployeeBenefits_e63e35b4-538c-4d5c-a3c0-4eac6d3f30daNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentProvisionsForEmployeeBenefits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentProvisionsForEmployeeBenefits_e63e35b4-538c-4d5c-a3c0-4eac6d3f30daNotDimensionallyQualified" xlink:type="arc" order="34"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherLongtermProvisions_37d0fdf9-c839-4a49-b4c0-1ae2b101999aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherLongtermProvisions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherLongtermProvisions_37d0fdf9-c839-4a49-b4c0-1ae2b101999aNotDimensionallyQualified" xlink:type="arc" order="35"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentLeaseLiabilities_c6875b19-2235-4166-b84c-c43b3bdee8c5NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLeaseLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentLeaseLiabilities_c6875b19-2235-4166-b84c-c43b3bdee8c5NotDimensionallyQualified" xlink:type="arc" order="36"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentPortionOfNoncurrentNotesAndDebenturesIssued_019c51d3-af06-75ea-a34b-8f41fcd5a272NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentPortionOfNoncurrentNotesAndDebenturesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentPortionOfNoncurrentNotesAndDebenturesIssued_019c51d3-af06-75ea-a34b-8f41fcd5a272NotDimensionallyQualified" xlink:type="arc" order="37"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_NonCurrentDebtSecuritiesAndBankBorrowingsInfrastructureProjects_54b15976-d159-42e4-b5b8-abb3918a3a7eNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_NonCurrentDebtSecuritiesAndBankBorrowingsInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_NonCurrentDebtSecuritiesAndBankBorrowingsInfrastructureProjects_54b15976-d159-42e4-b5b8-abb3918a3a7eNotDimensionallyQualified" xlink:type="arc" order="38"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_NonCurrentDebtSecuritiesAndBankBorrowingsExcludingInfrastructureProjects_5c7f871b-33a9-4053-91cc-ac68c0b1d3bdNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_NonCurrentDebtSecuritiesAndBankBorrowingsExcludingInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_NonCurrentDebtSecuritiesAndBankBorrowingsExcludingInfrastructureProjects_5c7f871b-33a9-4053-91cc-ac68c0b1d3bdNotDimensionallyQualified" xlink:type="arc" order="39"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherNoncurrentPayables_c801504b-6387-465d-817f-e6b749c98838NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherNoncurrentPayables"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherNoncurrentPayables_c801504b-6387-465d-817f-e6b749c98838NotDimensionallyQualified" xlink:type="arc" order="40"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxLiabilities_221f47af-459b-4b02-9855-8aa0c00e64f0NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DeferredTaxLiabilities_221f47af-459b-4b02-9855-8aa0c00e64f0NotDimensionallyQualified" xlink:type="arc" order="41"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentDerivativeFinancialLiabilities_7ae151ed-4926-4c8c-a451-ed5df8356f90NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentDerivativeFinancialLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentDerivativeFinancialLiabilities_7ae151ed-4926-4c8c-a451-ed5df8356f90NotDimensionallyQualified" xlink:type="arc" order="42"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentLiabilities_c71e9570-d102-432d-8623-5b13537d87aaNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentLiabilities_c71e9570-d102-432d-8623-5b13537d87aaNotDimensionallyQualified" xlink:type="arc" order="43"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentLeaseLiabilities_42edf9fe-ed60-45f4-8518-6a7f7801ae56NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLeaseLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentLeaseLiabilities_42edf9fe-ed60-45f4-8518-6a7f7801ae56NotDimensionallyQualified" xlink:type="arc" order="44"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentNotesAndDebenturesIssuedAndCurrentPortionOfNoncurrentNotesAndDebenturesIssued_019c51d8-b2f0-7ad6-8275-d278f5042a7dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentNotesAndDebenturesIssuedAndCurrentPortionOfNoncurrentNotesAndDebenturesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentNotesAndDebenturesIssuedAndCurrentPortionOfNoncurrentNotesAndDebenturesIssued_019c51d8-b2f0-7ad6-8275-d278f5042a7dNotDimensionallyQualified" xlink:type="arc" order="45"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_CurrentDebtSecuritiesAndBankBorrowingsInfrastructureProjects_428c51c1-c8ac-406c-8daa-84262bf2206aNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_CurrentDebtSecuritiesAndBankBorrowingsInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_CurrentDebtSecuritiesAndBankBorrowingsInfrastructureProjects_428c51c1-c8ac-406c-8daa-84262bf2206aNotDimensionallyQualified" xlink:type="arc" order="46"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_CurrentDebtSecuritiesAndBankBorrowingsExcludingInfrastructureProjects_2453e014-8659-4215-a491-d9a4f718a3e6NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_CurrentDebtSecuritiesAndBankBorrowingsExcludingInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_CurrentDebtSecuritiesAndBankBorrowingsExcludingInfrastructureProjects_2453e014-8659-4215-a491-d9a4f718a3e6NotDimensionallyQualified" xlink:type="arc" order="47"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentDerivativeFinancialLiabilities_596f0e1f-9d9b-4982-bae8-bc825570a81fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentDerivativeFinancialLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentDerivativeFinancialLiabilities_596f0e1f-9d9b-4982-bae8-bc825570a81fNotDimensionallyQualified" xlink:type="arc" order="48"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxLiabilitiesCurrent_6868d291-9482-41ea-8612-06ca7f0ef521NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentTaxLiabilitiesCurrent_6868d291-9482-41ea-8612-06ca7f0ef521NotDimensionallyQualified" xlink:type="arc" order="49"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherCurrentPayables_d3f70549-02eb-41a5-8367-bc53693fb0d8NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayables"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_TradeAndOtherCurrentPayables_d3f70549-02eb-41a5-8367-bc53693fb0d8NotDimensionallyQualified" xlink:type="arc" order="50"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers_80381de8-dbbd-4eb4-9b4a-48c555a7b05cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers_80381de8-dbbd-4eb4-9b4a-48c555a7b05cNotDimensionallyQualified" xlink:type="arc" order="51"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentAccrualsAndCurrentDeferredIncomeIncludingCurrentContractLiabilities_71ae4983-389d-49bd-bda6-21b9f9457eb2NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAccrualsAndCurrentDeferredIncomeIncludingCurrentContractLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentAccrualsAndCurrentDeferredIncomeIncludingCurrentContractLiabilities_71ae4983-389d-49bd-bda6-21b9f9457eb2NotDimensionallyQualified" xlink:type="arc" order="52"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherCurrentPayables_27d1e073-8a41-42bf-a860-017da4839863NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCurrentPayables"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherCurrentPayables_27d1e073-8a41-42bf-a860-017da4839863NotDimensionallyQualified" xlink:type="arc" order="53"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentProvisions_7f6ca92a-9eea-4ff4-98db-3c3c8472a43cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentProvisions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentProvisions_7f6ca92a-9eea-4ff4-98db-3c3c8472a43cNotDimensionallyQualified" xlink:type="arc" order="54"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale_0129a670-6215-454e-b238-288e8d02ec68NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale_0129a670-6215-454e-b238-288e8d02ec68NotDimensionallyQualified" xlink:type="arc" order="55"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAndLiabilities_6e75d3de-a42d-4233-a759-e9c93137f557NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_EquityAndLiabilities_6e75d3de-a42d-4233-a759-e9c93137f557NotDimensionallyQualified" xlink:type="arc" order="56"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueAndOperatingIncome_9a3a7c70-2c17-4aaf-8c80-bee42218f4cfNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueAndOperatingIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_RevenueAndOperatingIncome_9a3a7c70-2c17-4aaf-8c80-bee42218f4cfNotDimensionallyQualified" xlink:type="arc" order="57"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RawMaterialsAndConsumablesUsed_77e6a94f-5361-483c-952d-54c283c092c1NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RawMaterialsAndConsumablesUsed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_RawMaterialsAndConsumablesUsed_77e6a94f-5361-483c-952d-54c283c092c1NotDimensionallyQualified" xlink:type="arc" order="58"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherExpenseByNature_42604525-89b0-4c22-a8df-678425d8866eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherExpenseByNature"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherExpenseByNature_42604525-89b0-4c22-a8df-678425d8866eNotDimensionallyQualified" xlink:type="arc" order="59"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EmployeeBenefitsExpense_923fac63-54ec-49cd-92a3-d2d07bca938aNotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_EmployeeBenefitsExpense_923fac63-54ec-49cd-92a3-d2d07bca938aNotDimensionallyQualified" xlink:type="arc" order="60"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OperatingExpense_a551e0f4-359b-4f64-a5ed-7392cc7d1933NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OperatingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OperatingExpense_a551e0f4-359b-4f64-a5ed-7392cc7d1933NotDimensionallyQualified" xlink:type="arc" order="61"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepreciationAndAmortisationExpense_739410a5-4c1d-4046-ba07-a427820aa699NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DepreciationAndAmortisationExpense_739410a5-4c1d-4046-ba07-a427820aa699NotDimensionallyQualified" xlink:type="arc" order="62"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_GainsOrLossesOnDisposalOfNonCurrentAssetsAndImpairments_b7889f5f-a50b-4a4e-bebb-a1f475a110c5NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_GainsOrLossesOnDisposalOfNonCurrentAssetsAndImpairments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_GainsOrLossesOnDisposalOfNonCurrentAssetsAndImpairments_b7889f5f-a50b-4a4e-bebb-a1f475a110c5NotDimensionallyQualified" xlink:type="arc" order="63"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromOperatingActivities_2b62b05b-6652-4a73-a1a9-6328b731434bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProfitLossFromOperatingActivities_2b62b05b-6652-4a73-a1a9-6328b731434bNotDimensionallyQualified" xlink:type="arc" order="64"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_FinancialResultOnFinancingInfrastructureProjects_701de6aa-d38f-484a-9e5c-1845413279e5NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_FinancialResultOnFinancingInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_FinancialResultOnFinancingInfrastructureProjects_701de6aa-d38f-484a-9e5c-1845413279e5NotDimensionallyQualified" xlink:type="arc" order="65"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_ResultOnDerivativesAndOtherFinancialResultsInfrastructureProjects_6876ca1f-06e3-4e06-94f2-578aa5609254NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_ResultOnDerivativesAndOtherFinancialResultsInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_ResultOnDerivativesAndOtherFinancialResultsInfrastructureProjects_6876ca1f-06e3-4e06-94f2-578aa5609254NotDimensionallyQualified" xlink:type="arc" order="66"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_FinancialResultOfInfrastructureProjects_65e37d79-5efc-46ab-92b9-92ede57a0494NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_FinancialResultOfInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_FinancialResultOfInfrastructureProjects_65e37d79-5efc-46ab-92b9-92ede57a0494NotDimensionallyQualified" xlink:type="arc" order="67"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_FinancialResultOnFinancingExcludingInfrastructureProjects_2acd17dd-077d-4be4-babd-4f2160deb494NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_FinancialResultOnFinancingExcludingInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_FinancialResultOnFinancingExcludingInfrastructureProjects_2acd17dd-077d-4be4-babd-4f2160deb494NotDimensionallyQualified" xlink:type="arc" order="68"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_ResultOnDerivativesAndOtherFinancialResultsExcludingInfrastructureProjects_fa224154-7d33-40cb-9776-8774e022ebaaNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_ResultOnDerivativesAndOtherFinancialResultsExcludingInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_ResultOnDerivativesAndOtherFinancialResultsExcludingInfrastructureProjects_fa224154-7d33-40cb-9776-8774e022ebaaNotDimensionallyQualified" xlink:type="arc" order="69"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_FinancialResultExcludingInfrastructureProjects_04adbf66-5ad5-438c-9f88-b557f72f0803NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_FinancialResultExcludingInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_FinancialResultExcludingInfrastructureProjects_04adbf66-5ad5-438c-9f88-b557f72f0803NotDimensionallyQualified" xlink:type="arc" order="70"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinanceIncomeCost_2f79be74-61f9-4882-851a-ac0b06a18ac3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinanceIncomeCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_FinanceIncomeCost_2f79be74-61f9-4882-851a-ac0b06a18ac3NotDimensionallyQualified" xlink:type="arc" order="71"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod_f19a7419-f979-4908-87fb-9410a5aa2be0NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod_f19a7419-f979-4908-87fb-9410a5aa2be0NotDimensionallyQualified" xlink:type="arc" order="72"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossBeforeTax_9afc3cf3-cc53-45c7-96af-a0d2b68f7278NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProfitLossBeforeTax_9afc3cf3-cc53-45c7-96af-a0d2b68f7278NotDimensionallyQualified" xlink:type="arc" order="73"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_0cf11351-555f-404d-a44d-792aaa76b445NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_0cf11351-555f-404d-a44d-792aaa76b445NotDimensionallyQualified" xlink:type="arc" order="74"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromContinuingOperations_ace0083f-81eb-4794-ad0e-842a7cc7d327NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProfitLossFromContinuingOperations_ace0083f-81eb-4794-ad0e-842a7cc7d327NotDimensionallyQualified" xlink:type="arc" order="75"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromDiscontinuedOperations_ffc7d36d-6b4b-42c2-918d-5a14d597c2e6NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProfitLossFromDiscontinuedOperations_ffc7d36d-6b4b-42c2-918d-5a14d597c2e6NotDimensionallyQualified" xlink:type="arc" order="76"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss_0a2d9a64-b91e-46f5-8af9-ba3dd2b3faefNotDimensionallyQualified" 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_0a2d9a64-b91e-46f5-8af9-ba3dd2b3faefNotDimensionallyQualified" xlink:type="arc" order="77"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToNoncontrollingInterests_01347ae3-a630-4d3d-a74b-360405d01cb5NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProfitLossAttributableToNoncontrollingInterests_01347ae3-a630-4d3d-a74b-360405d01cb5NotDimensionallyQualified" xlink:type="arc" order="78"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent_d1c86c1f-ca71-42be-8620-e1c099b0f550NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent_d1c86c1f-ca71-42be-8620-e1c099b0f550NotDimensionallyQualified" xlink:type="arc" order="79"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DilutedEarningsLossPerShare_659c7d43-e0a5-4294-bb44-f65fe23004f9NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DilutedEarningsLossPerShare_659c7d43-e0a5-4294-bb44-f65fe23004f9NotDimensionallyQualified" xlink:type="arc" order="80"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BasicEarningsLossPerShare_a2c59b2e-ffde-4b68-901f-727ca37ea854NotDimensionallyQualified" 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_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_BasicEarningsLossPerShare_a2c59b2e-ffde-4b68-901f-727ca37ea854NotDimensionallyQualified" xlink:type="arc" order="81"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations_fc6d2930-f1ce-40e9-9d3b-ad92a2c4d803NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations_fc6d2930-f1ce-40e9-9d3b-ad92a2c4d803NotDimensionallyQualified" xlink:type="arc" order="82"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BasicEarningsLossPerShareFromContinuingOperations_49b66a98-e167-47c3-8f04-87637879b3a9NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BasicEarningsLossPerShareFromContinuingOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_BasicEarningsLossPerShareFromContinuingOperations_49b66a98-e167-47c3-8f04-87637879b3a9NotDimensionallyQualified" xlink:type="arc" order="83"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DilutedEarningsLossPerShareFromDiscontinuedOperations_019c5cfc-591f-702a-ab4f-24d8a97c93b3NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DilutedEarningsLossPerShareFromDiscontinuedOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DilutedEarningsLossPerShareFromDiscontinuedOperations_019c5cfc-591f-702a-ab4f-24d8a97c93b3NotDimensionallyQualified" xlink:type="arc" order="84"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BasicEarningsLossPerShareFromDiscontinuedOperations_019c5cfd-b563-7ea8-af3a-6334e5110953NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_BasicEarningsLossPerShareFromDiscontinuedOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_BasicEarningsLossPerShareFromDiscontinuedOperations_019c5cfd-b563-7ea8-af3a-6334e5110953NotDimensionallyQualified" xlink:type="arc" order="85"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeAndExpensesRecognisedDirectlyInEquityNetOfTaxes_7b013c0e-5b26-40c6-be4f-c02e6e76443eNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeAndExpensesRecognisedDirectlyInEquityNetOfTaxes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_OtherComprehensiveIncomeAndExpensesRecognisedDirectlyInEquityNetOfTaxes_7b013c0e-5b26-40c6-be4f-c02e6e76443eNotDimensionallyQualified" xlink:type="arc" order="86"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeAndExpensesNetOfTaxRecognisedDirectlyInEquityOfFullyConsolidatedCompanies_060d48b0-3f78-4715-ba9e-aeaf2870a0ffNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeAndExpensesNetOfTaxRecognisedDirectlyInEquityOfFullyConsolidatedCompanies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_OtherComprehensiveIncomeAndExpensesNetOfTaxRecognisedDirectlyInEquityOfFullyConsolidatedCompanies_060d48b0-3f78-4715-ba9e-aeaf2870a0ffNotDimensionallyQualified" xlink:type="arc" order="87"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfFullyConsolidatedCompanies_57523de6-2978-4871-b718-0ad93e6ca140NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfFullyConsolidatedCompanies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfFullyConsolidatedCompanies_57523de6-2978-4871-b718-0ad93e6ca140NotDimensionallyQualified" xlink:type="arc" order="88"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfFullyConsolidatedCompanies_d67e9b1c-1297-4e64-a51f-4d12841fae7eNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfFullyConsolidatedCompanies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfFullyConsolidatedCompanies_d67e9b1c-1297-4e64-a51f-4d12841fae7eNotDimensionallyQualified" xlink:type="arc" order="89"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfFullyConsolidatedCompanies_8a8b75f6-4ede-4bb8-9e08-3edd9330f96eNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfFullyConsolidatedCompanies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfFullyConsolidatedCompanies_8a8b75f6-4ede-4bb8-9e08-3edd9330f96eNotDimensionallyQualified" xlink:type="arc" order="90"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeAndExpensesNetOfTaxRecognisedDirectlyInEquityOfCompaniesHeldForSale_bff93dbc-e44d-4eb0-b2b3-99df661105f5NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeAndExpensesNetOfTaxRecognisedDirectlyInEquityOfCompaniesHeldForSale"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_OtherComprehensiveIncomeAndExpensesNetOfTaxRecognisedDirectlyInEquityOfCompaniesHeldForSale_bff93dbc-e44d-4eb0-b2b3-99df661105f5NotDimensionallyQualified" xlink:type="arc" order="91"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfCompaniesHeldForSale_a7af97dd-701e-4821-8fb5-6cede81122baNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfCompaniesHeldForSale"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfCompaniesHeldForSale_a7af97dd-701e-4821-8fb5-6cede81122baNotDimensionallyQualified" xlink:type="arc" order="92"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfHeldForSale_29e40d69-9ac4-450b-8965-38e804ee6a07NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfHeldForSale"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfHeldForSale_29e40d69-9ac4-450b-8965-38e804ee6a07NotDimensionallyQualified" xlink:type="arc" order="93"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfCompaniesHeldForSale_85019006-3244-4f9d-a393-5dbf9aa086d6NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfCompaniesHeldForSale"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfCompaniesHeldForSale_85019006-3244-4f9d-a393-5dbf9aa086d6NotDimensionallyQualified" xlink:type="arc" order="94"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeAndExpensesRecognisedDirectlyInEquityNetOfTaxOfEquityAccountedCompanies_be393d2d-3cd4-4a0a-bdba-b0c9b82ff7d3NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeAndExpensesRecognisedDirectlyInEquityNetOfTaxOfEquityAccountedCompanies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_OtherComprehensiveIncomeAndExpensesRecognisedDirectlyInEquityNetOfTaxOfEquityAccountedCompanies_be393d2d-3cd4-4a0a-bdba-b0c9b82ff7d3NotDimensionallyQualified" xlink:type="arc" order="95"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfEquityAccountedCompanies_615a85a0-6301-46b7-a50e-4e617e1b7d46NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfEquityAccountedCompanies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfEquityAccountedCompanies_615a85a0-6301-46b7-a50e-4e617e1b7d46NotDimensionallyQualified" xlink:type="arc" order="96"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfEquityAccountedCompanies_006d15c6-e060-464e-a37d-d999cb6ff338NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfEquityAccountedCompanies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfEquityAccountedCompanies_006d15c6-e060-464e-a37d-d999cb6ff338NotDimensionallyQualified" xlink:type="arc" order="97"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfEquityAccountedCompanies_67e6b147-4b5a-448d-8d00-fd7c8fda6b39NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfEquityAccountedCompanies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfEquityAccountedCompanies_67e6b147-4b5a-448d-8d00-fd7c8fda6b39NotDimensionallyQualified" xlink:type="arc" order="98"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_TotalOtherComprehensiveIncomeReclassifiedToProfitOrLossNetOfTax_4daff0d9-9272-41ef-a27f-c80d1d94f59bNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_TotalOtherComprehensiveIncomeReclassifiedToProfitOrLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_TotalOtherComprehensiveIncomeReclassifiedToProfitOrLossNetOfTax_4daff0d9-9272-41ef-a27f-c80d1d94f59bNotDimensionallyQualified" xlink:type="arc" order="99"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossNetOfTaxOfFullyConsolidatedCompanies_745f2a73-1705-4172-bd48-0454e3490600NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossNetOfTaxOfFullyConsolidatedCompanies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossNetOfTaxOfFullyConsolidatedCompanies_745f2a73-1705-4172-bd48-0454e3490600NotDimensionallyQualified" xlink:type="arc" order="100"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossBeforeTaxOfFullyConsolidatedCompanies_5a2daa40-a697-4bf6-8efc-29583aaabb22NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossBeforeTaxOfFullyConsolidatedCompanies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossBeforeTaxOfFullyConsolidatedCompanies_5a2daa40-a697-4bf6-8efc-29583aaabb22NotDimensionallyQualified" xlink:type="arc" order="101"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_IncomeTaxRelatingToOtherComprehensiveIncomeAndExpensesReclassifiedToProfitOrLossOfFullyConsolidatedCompanies_8ab57370-77a9-4ff2-b9cd-a888102340c0NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_IncomeTaxRelatingToOtherComprehensiveIncomeAndExpensesReclassifiedToProfitOrLossOfFullyConsolidatedCompanies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_IncomeTaxRelatingToOtherComprehensiveIncomeAndExpensesReclassifiedToProfitOrLossOfFullyConsolidatedCompanies_8ab57370-77a9-4ff2-b9cd-a888102340c0NotDimensionallyQualified" xlink:type="arc" order="102"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossNetOfTaxOfHeldForSaleCompanies_019b2833-c6f0-74b5-b868-a273138e1bbcNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossNetOfTaxOfHeldForSaleCompanies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossNetOfTaxOfHeldForSaleCompanies_019b2833-c6f0-74b5-b868-a273138e1bbcNotDimensionallyQualified" xlink:type="arc" order="103"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossBeforeTaxOfHeldForSaleCompanies_ecec6b04-5e9f-4dd2-a76c-e86e885fa690NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossBeforeTaxOfHeldForSaleCompanies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossBeforeTaxOfHeldForSaleCompanies_ecec6b04-5e9f-4dd2-a76c-e86e885fa690NotDimensionallyQualified" xlink:type="arc" order="104"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_IncomeTaxRelatingToOtherComprehensiveIncomeAndExpensesReclassifiedToProfitOrLossOfHeldForSaleCompanies_0739f77f-f1cc-4169-ae00-988e59347e44NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_IncomeTaxRelatingToOtherComprehensiveIncomeAndExpensesReclassifiedToProfitOrLossOfHeldForSaleCompanies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_IncomeTaxRelatingToOtherComprehensiveIncomeAndExpensesReclassifiedToProfitOrLossOfHeldForSaleCompanies_0739f77f-f1cc-4169-ae00-988e59347e44NotDimensionallyQualified" xlink:type="arc" order="105"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax_019b281c-f4bb-783e-a13e-7e9e6cc2bc87NotDimensionallyQualified" 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_019b281c-f4bb-783e-a13e-7e9e6cc2bc87NotDimensionallyQualified" xlink:type="arc" order="106"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax_019b2c9c-73c1-7b5c-8db4-c9a22bbfeca2NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax_019b2c9c-73c1-7b5c-8db4-c9a22bbfeca2NotDimensionallyQualified" xlink:type="arc" order="107"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLoss_d5851f9b-abd9-415d-9e33-613312b4853eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxRelatingToShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxRelatingToShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLoss_d5851f9b-abd9-415d-9e33-613312b4853eNotDimensionallyQualified" xlink:type="arc" order="108"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncome_1cea6406-308a-4637-90d1-73622bf8be0fNotDimensionallyQualified" 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_1cea6406-308a-4637-90d1-73622bf8be0fNotDimensionallyQualified" xlink:type="arc" order="109"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_ee03a2a2-329c-4b14-aa06-ca7222fdacb8NotDimensionallyQualified" 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_ee03a2a2-329c-4b14-aa06-ca7222fdacb8NotDimensionallyQualified" xlink:type="arc" order="110"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeFromContinuingOperationsAttributableToOwnersOfParent_019b2793-dc6c-7274-b93e-5234f4ecd75aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncomeFromContinuingOperationsAttributableToOwnersOfParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ComprehensiveIncomeFromContinuingOperationsAttributableToOwnersOfParent_019b2793-dc6c-7274-b93e-5234f4ecd75aNotDimensionallyQualified" xlink:type="arc" order="111"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeFromDiscontinuedOperationsAttributableToOwnersOfParent_019b2794-8a89-7321-8cc6-3a2e9f90d647NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncomeFromDiscontinuedOperationsAttributableToOwnersOfParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ComprehensiveIncomeFromDiscontinuedOperationsAttributableToOwnersOfParent_019b2794-8a89-7321-8cc6-3a2e9f90d647NotDimensionallyQualified" xlink:type="arc" order="112"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests_7a5a6990-68d8-45a9-83a5-aa7a776db237NotDimensionallyQualified" 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_7a5a6990-68d8-45a9-83a5-aa7a776db237NotDimensionallyQualified" xlink:type="arc" order="113"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital_a070a57f-062d-4da1-9838-846c341056ebNotDimensionallyQualified" 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_a070a57f-062d-4da1-9838-846c341056ebNotDimensionallyQualified" xlink:type="arc" order="114"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_AdjustmentsForNonControllingInterests_47634146-eacb-421d-a5e3-5e4ddf3d45bcNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_AdjustmentsForNonControllingInterests"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_AdjustmentsForNonControllingInterests_47634146-eacb-421d-a5e3-5e4ddf3d45bcNotDimensionallyQualified" xlink:type="arc" order="115"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_AdjustmentForNetProfitLossFromDiscontinuedOperations_96101922-c100-4283-a3d1-5d2287061052NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_AdjustmentForNetProfitLossFromDiscontinuedOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_AdjustmentForNetProfitLossFromDiscontinuedOperations_96101922-c100-4283-a3d1-5d2287061052NotDimensionallyQualified" xlink:type="arc" order="116"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncomeTaxExpense_5dadd341-c170-4543-aa4a-9ab8fa16f04cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncomeTaxExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForIncomeTaxExpense_5dadd341-c170-4543-aa4a-9ab8fa16f04cNotDimensionallyQualified" xlink:type="arc" order="117"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod_ff5bd70b-2c6a-42ac-bb1e-ef0f811b58cfNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod_ff5bd70b-2c6a-42ac-bb1e-ef0f811b58cfNotDimensionallyQualified" xlink:type="arc" order="118"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForFinanceIncomeCost_5e075b45-3094-4cdf-a7c0-ee5ff4061e96NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForFinanceIncomeCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForFinanceIncomeCost_5e075b45-3094-4cdf-a7c0-ee5ff4061e96NotDimensionallyQualified" xlink:type="arc" order="119"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_AdjustmentsForImpairmentAndDisposalOfFixedAssets_7339a979-b00e-457f-9d30-b91aa8c09638NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_AdjustmentsForImpairmentAndDisposalOfFixedAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_AdjustmentsForImpairmentAndDisposalOfFixedAssets_7339a979-b00e-457f-9d30-b91aa8c09638NotDimensionallyQualified" xlink:type="arc" order="120"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense_a349bd2d-3628-47bc-8348-67eb40d33436NotDimensionallyQualified" 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_a349bd2d-3628-47bc-8348-67eb40d33436NotDimensionallyQualified" xlink:type="arc" order="121"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities_409e1f10-2396-4b3c-a3bc-933dc8c20d1bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities_409e1f10-2396-4b3c-a3bc-933dc8c20d1bNotDimensionallyQualified" xlink:type="arc" order="122"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInWorkingCapital_1e085696-3d39-4359-8b81-9fd5becbea30NotDimensionallyQualified" 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://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncreaseDecreaseInWorkingCapital_1e085696-3d39-4359-8b81-9fd5becbea30NotDimensionallyQualified" xlink:type="arc" order="123"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsReceivedClassifiedAsOperatingActivities_f6019f21-e119-4640-b8e4-1ad9c743c0ffNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsReceivedClassifiedAsOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DividendsReceivedClassifiedAsOperatingActivities_f6019f21-e119-4640-b8e4-1ad9c743c0ffNotDimensionallyQualified" xlink:type="arc" order="124"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities_cfcb5c63-82b9-423f-98d9-f57899ae7cd6NotDimensionallyQualified" 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_cfcb5c63-82b9-423f-98d9-f57899ae7cd6NotDimensionallyQualified" xlink:type="arc" order="125"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_InvestmentsInPropertyPlantAndEquipmentAndIntangibleAssets_3822d61e-f749-4e16-86e1-179a13fe19ceNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_InvestmentsInPropertyPlantAndEquipmentAndIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_InvestmentsInPropertyPlantAndEquipmentAndIntangibleAssets_3822d61e-f749-4e16-86e1-179a13fe19ceNotDimensionallyQualified" xlink:type="arc" order="126"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_InvestmentsInInfrastructureProjects_f0953522-9609-4d32-9d9d-8c7fcc069923NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_InvestmentsInInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_InvestmentsInInfrastructureProjects_f0953522-9609-4d32-9d9d-8c7fcc069923NotDimensionallyQualified" xlink:type="arc" order="127"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities_4c4d77b2-b0f8-48ef-8fc6-5a7f0c382d3bNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities_4c4d77b2-b0f8-48ef-8fc6-5a7f0c382d3bNotDimensionallyQualified" xlink:type="arc" order="128"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_54c4839b-e0fa-48b2-9269-e71cbeffce1dNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities_54c4839b-e0fa-48b2-9269-e71cbeffce1dNotDimensionallyQualified" xlink:type="arc" order="129"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestReceivedClassifiedAsInvestingActivities_386bfe84-c388-4f9a-a01e-51afadd4714aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestReceivedClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_InterestReceivedClassifiedAsInvestingActivities_386bfe84-c388-4f9a-a01e-51afadd4714aNotDimensionallyQualified" xlink:type="arc" order="130"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents_4e29e792-9bde-48b1-a402-16ce3a86b95cNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents_4e29e792-9bde-48b1-a402-16ce3a86b95cNotDimensionallyQualified" xlink:type="arc" order="131"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_CashFlowsFromDivestmentsInSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_f55b8fd6-0cc9-43ac-bb55-25af36d2b535NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_CashFlowsFromDivestmentsInSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_CashFlowsFromDivestmentsInSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_f55b8fd6-0cc9-43ac-bb55-25af36d2b535NotDimensionallyQualified" xlink:type="arc" order="132"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_5ea89f53-72b2-42d6-857d-6a0c570139bdNotDimensionallyQualified" 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_5ea89f53-72b2-42d6-857d-6a0c570139bdNotDimensionallyQualified" xlink:type="arc" order="133"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_CashFlowsBeforeFinancingActivities_81d626c0-98bb-4d83-8e64-0c0a2c8c8086NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_CashFlowsBeforeFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_CashFlowsBeforeFinancingActivities_81d626c0-98bb-4d83-8e64-0c0a2c8c8086NotDimensionallyQualified" xlink:type="arc" order="134"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromContributionsOfNoncontrollingInterests_dea007e5-6f05-4ae9-94ee-18764a2e161aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromContributionsOfNoncontrollingInterests"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProceedsFromContributionsOfNoncontrollingInterests_dea007e5-6f05-4ae9-94ee-18764a2e161aNotDimensionallyQualified" xlink:type="arc" order="135"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_RemunerationOfShareholder_094e4960-66d9-43c7-a4b4-e40befc75c7bNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_RemunerationOfShareholder"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_RemunerationOfShareholder_094e4960-66d9-43c7-a4b4-e40befc75c7bNotDimensionallyQualified" xlink:type="arc" order="136"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities_ba707bea-7ad0-4010-ac12-3a3180c55b6eNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities_ba707bea-7ad0-4010-ac12-3a3180c55b6eNotDimensionallyQualified" xlink:type="arc" order="137"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_TreasurySharesPurchasesFromFinancingActivities_2e722552-4a23-4c57-a2b2-01721a629b12NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_TreasurySharesPurchasesFromFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_TreasurySharesPurchasesFromFinancingActivities_2e722552-4a23-4c57-a2b2-01721a629b12NotDimensionallyQualified" xlink:type="arc" order="138"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaidToNoncontrollingInterests_9c3c1a7d-8e9a-464e-9712-44d349d0b3dcNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsPaidToNoncontrollingInterests"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DividendsPaidToNoncontrollingInterests_9c3c1a7d-8e9a-464e-9712-44d349d0b3dcNotDimensionallyQualified" xlink:type="arc" order="139"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherTreasurySharesRepurchase_e1017ba1-ffda-4b21-b498-d1dd66e023c4NotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_OtherTreasurySharesRepurchase"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_OtherTreasurySharesRepurchase_e1017ba1-ffda-4b21-b498-d1dd66e023c4NotDimensionallyQualified" xlink:type="arc" order="140"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherMovementsInShareholdersFunds_bf983432-295c-4b70-a4fd-015c60aeb5caNotDimensionallyQualified" xlink:href="fer-2025-12-31.xsd#fer_OtherMovementsInShareholdersFunds"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_fer_OtherMovementsInShareholdersFunds_bf983432-295c-4b70-a4fd-015c60aeb5caNotDimensionallyQualified" xlink:type="arc" order="141"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestPaidClassifiedAsFinancingActivities_607f2162-b916-4229-b509-6c333808c46aNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestPaidClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_InterestPaidClassifiedAsFinancingActivities_607f2162-b916-4229-b509-6c333808c46aNotDimensionallyQualified" xlink:type="arc" order="142"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_9e6aa291-4189-4202-a3a3-a5ac0bab9414NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_9e6aa291-4189-4202-a3a3-a5ac0bab9414NotDimensionallyQualified" xlink:type="arc" order="143"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_2360c33c-c6c2-4a05-8797-b5c69b5eee46NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_2360c33c-c6c2-4a05-8797-b5c69b5eee46NotDimensionallyQualified" xlink:type="arc" order="144"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_22b9016f-01a4-457b-af97-5fedc2f7dd86NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_22b9016f-01a4-457b-af97-5fedc2f7dd86NotDimensionallyQualified" xlink:type="arc" order="145"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_90765ea8-ecb7-4918-a415-e1c7163b57e4NotDimensionallyQualified" 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_90765ea8-ecb7-4918-a415-e1c7163b57e4NotDimensionallyQualified" xlink:type="arc" order="146"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_9fad4543-9bdd-459d-a4f7-c5dd148a9753NotDimensionallyQualified" 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_9fad4543-9bdd-459d-a4f7-c5dd148a9753NotDimensionallyQualified" xlink:type="arc" order="147"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013_a53b7eb8-e637-4129-955c-aeecf1ffd668NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013_a53b7eb8-e637-4129-955c-aeecf1ffd668NotDimensionallyQualified" xlink:type="arc" order="148"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_00bacc1a-9949-475b-b96a-d6fa69826d44NotDimensionallyQualified" 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_00bacc1a-9949-475b-b96a-d6fa69826d44NotDimensionallyQualified" xlink:type="arc" order="149"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LegalFormOfEntity_4cb13b6c-b09b-4c07-ab57-1725e8d5bd2fNotDimensionallyQualified" 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_4cb13b6c-b09b-4c07-ab57-1725e8d5bd2fNotDimensionallyQualified" xlink:type="arc" order="150"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities_09e208d8-06f8-4193-a885-c2d825838bfaNotDimensionallyQualified" 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_09e208d8-06f8-4193-a885-c2d825838bfaNotDimensionallyQualified" xlink:type="arc" order="151"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification_4c1d4bfe-a046-460d-995d-652278180564NotDimensionallyQualified" 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_4c1d4bfe-a046-460d-995d-652278180564NotDimensionallyQualified" xlink:type="arc" order="152"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AddressOfRegisteredOfficeOfEntity_51d72a3f-8796-4fe2-a229-483edc2a79a7NotDimensionallyQualified" 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_51d72a3f-8796-4fe2-a229-483edc2a79a7NotDimensionallyQualified" xlink:type="arc" order="153"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DomicileOfEntity_96f253a8-e733-40a3-b424-48baa92fd156NotDimensionallyQualified" 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_96f253a8-e733-40a3-b424-48baa92fd156NotDimensionallyQualified" xlink:type="arc" order="154"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CountryOfIncorporation_3fc4416b-639f-455e-b545-0878abbe021fNotDimensionallyQualified" 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_3fc4416b-639f-455e-b545-0878abbe021fNotDimensionallyQualified" xlink:type="arc" order="155"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExplanationOfAssumptionAboutFutureWithSignificantRiskOfResultingInMaterialAdjustments_53a891e0-3bab-468a-8d2a-a448055f300cNotDimensionallyQualified" 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_53a891e0-3bab-468a-8d2a-a448055f300cNotDimensionallyQualified" xlink:type="arc" order="156"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PrincipalPlaceOfBusiness_019b22c5-b09a-7d8b-bcd9-1f168b10ae56NotDimensionallyQualified" 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_019b22c5-b09a-7d8b-bcd9-1f168b10ae56NotDimensionallyQualified" xlink:type="arc" order="157"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory_04920a3c-fad6-40ba-b083-9e32749cffc6NotDimensionallyQualified" 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_04920a3c-fad6-40ba-b083-9e32749cffc6NotDimensionallyQualified" xlink:type="arc" order="158"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfIFRSCompliance_70120789-d38b-4e6c-8427-7fdbbb8a2db9NotDimensionallyQualified" 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_70120789-d38b-4e6c-8427-7fdbbb8a2db9NotDimensionallyQualified" xlink:type="arc" order="159"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory_14182332-808b-4397-b8ec-034e36b165ffNotDimensionallyQualified" 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_14182332-808b-4397-b8ec-034e36b165ffNotDimensionallyQualified" xlink:type="arc" order="160"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory_485f3e5e-f128-44b7-b8ef-edae7e1da7b8NotDimensionallyQualified" 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_485f3e5e-f128-44b7-b8ef-edae7e1da7b8NotDimensionallyQualified" xlink:type="arc" order="161"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_410705fe-bc2a-4855-af04-c034c3865532NotDimensionallyQualified" 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_410705fe-bc2a-4855-af04-c034c3865532NotDimensionallyQualified" xlink:type="arc" order="162"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesExplanatory_cdf2f89e-275f-4eab-8a3b-fc5982200614NotDimensionallyQualified" 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_cdf2f89e-275f-4eab-8a3b-fc5982200614NotDimensionallyQualified" xlink:type="arc" order="163"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory_8fcb60e2-4198-4ccd-a4ad-35c0cfd937bbNotDimensionallyQualified" 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_8fcb60e2-4198-4ccd-a4ad-35c0cfd937bbNotDimensionallyQualified" xlink:type="arc" order="164"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory_362e7fcd-f3ef-4875-ab8c-6bd72ecc8bc1NotDimensionallyQualified" 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_362e7fcd-f3ef-4875-ab8c-6bd72ecc8bc1NotDimensionallyQualified" xlink:type="arc" order="165"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory_01c9cef9-2a93-4a89-a897-14e5f188665cNotDimensionallyQualified" 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_01c9cef9-2a93-4a89-a897-14e5f188665cNotDimensionallyQualified" xlink:type="arc" order="166"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory_ffe814aa-7ca6-4cf9-9a99-384c4b0beab9NotDimensionallyQualified" 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_ffe814aa-7ca6-4cf9-9a99-384c4b0beab9NotDimensionallyQualified" xlink:type="arc" order="167"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDiscontinuedOperationsExplanatory_353a74d5-ae7b-4734-af28-e576be19f73dNotDimensionallyQualified" 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_353a74d5-ae7b-4734-af28-e576be19f73dNotDimensionallyQualified" xlink:type="arc" order="168"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory_019c7141-12fc-73c5-af8f-0fa4ec3a7725NotDimensionallyQualified" 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_019c7141-12fc-73c5-af8f-0fa4ec3a7725NotDimensionallyQualified" xlink:type="arc" order="169"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory_df9f5eca-d1a9-4a3c-8aa9-10f7d079593aNotDimensionallyQualified" 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_df9f5eca-d1a9-4a3c-8aa9-10f7d079593aNotDimensionallyQualified" xlink:type="arc" order="170"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDividendsExplanatory_2623157d-5d22-441f-9306-b22b8d7ecb64NotDimensionallyQualified" 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_2623157d-5d22-441f-9306-b22b8d7ecb64NotDimensionallyQualified" xlink:type="arc" order="171"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory_5f2d1e62-72ca-4e54-90c9-ed25797ac8f1NotDimensionallyQualified" 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_5f2d1e62-72ca-4e54-90c9-ed25797ac8f1NotDimensionallyQualified" xlink:type="arc" order="172"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory_220a0618-18ab-47db-87cc-0141405cb549NotDimensionallyQualified" 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_220a0618-18ab-47db-87cc-0141405cb549NotDimensionallyQualified" xlink:type="arc" order="173"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory_698c79c5-3d84-4987-bb60-6db371d78cddNotDimensionallyQualified" 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_698c79c5-3d84-4987-bb60-6db371d78cddNotDimensionallyQualified" xlink:type="arc" order="174"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRelatedPartyExplanatory_bb8ad689-c7d7-4124-aaec-9ee2545f6e11NotDimensionallyQualified" 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_bb8ad689-c7d7-4124-aaec-9ee2545f6e11NotDimensionallyQualified" xlink:type="arc" order="175"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForTransactionsWithRelatedPartiesExplanatory_b2156e2c-d026-44fc-a963-4cf28952ecd3NotDimensionallyQualified" 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_b2156e2c-d026-44fc-a963-4cf28952ecd3NotDimensionallyQualified" xlink:type="arc" order="176"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory_f0c4e1cf-a217-47a3-bdbb-055cd6a55e3cNotDimensionallyQualified" 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_f0c4e1cf-a217-47a3-bdbb-055cd6a55e3cNotDimensionallyQualified" xlink:type="arc" order="177"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory_a3eed5d4-92cb-4bbd-a182-776c4fb13ee0NotDimensionallyQualified" 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_a3eed5d4-92cb-4bbd-a182-776c4fb13ee0NotDimensionallyQualified" xlink:type="arc" order="178"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDeferredIncomeExplanatory_b25982ed-563e-4132-b128-c39b11674261NotDimensionallyQualified" 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_b25982ed-563e-4132-b128-c39b11674261NotDimensionallyQualified" xlink:type="arc" order="179"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfProvisionsExplanatory_8bec456c-7244-499e-972f-cda23728bc45NotDimensionallyQualified" 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_8bec456c-7244-499e-972f-cda23728bc45NotDimensionallyQualified" xlink:type="arc" order="180"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory_81e4b5d1-a53b-4bb4-bc5b-c037cf984d8bNotDimensionallyQualified" 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_81e4b5d1-a53b-4bb4-bc5b-c037cf984d8bNotDimensionallyQualified" xlink:type="arc" order="181"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCommitmentsExplanatory_4a4d323a-8e64-4dfb-8ce4-e0c0d99988bbNotDimensionallyQualified" 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_4a4d323a-8e64-4dfb-8ce4-e0c0d99988bbNotDimensionallyQualified" xlink:type="arc" order="182"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCreditRiskExplanatory_13b4bcb7-79e5-465c-aa3f-496097dd1d89NotDimensionallyQualified" 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_13b4bcb7-79e5-465c-aa3f-496097dd1d89NotDimensionallyQualified" xlink:type="arc" order="183"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfLiquidityRiskExplanatory_2d701980-d1d5-4f48-b075-1f4008b36ea9NotDimensionallyQualified" 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_2d701980-d1d5-4f48-b075-1f4008b36ea9NotDimensionallyQualified" xlink:type="arc" order="184"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory_8fe348a6-ccd4-42b7-8675-16da39898ec9NotDimensionallyQualified" 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_8fe348a6-ccd4-42b7-8675-16da39898ec9NotDimensionallyQualified" xlink:type="arc" order="185"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDebtSecuritiesExplanatory_6b4d888b-dfb4-4a6b-9b3f-37682e236733NotDimensionallyQualified" 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_6b4d888b-dfb4-4a6b-9b3f-37682e236733NotDimensionallyQualified" xlink:type="arc" order="186"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_adfbcb99-2acb-4078-b253-f85585751f15NotDimensionallyQualified" 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_adfbcb99-2acb-4078-b253-f85585751f15NotDimensionallyQualified" xlink:type="arc" order="187"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBorrowingsExplanatory_5da39f78-4658-4dbd-9353-22a48e0a0d66NotDimensionallyQualified" 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_5da39f78-4658-4dbd-9353-22a48e0a0d66NotDimensionallyQualified" xlink:type="arc" order="188"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIssuedCapitalExplanatory_950abbe3-db91-4161-9c25-ed3ad8497e48NotDimensionallyQualified" 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_950abbe3-db91-4161-9c25-ed3ad8497e48NotDimensionallyQualified" xlink:type="arc" order="189"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTreasurySharesExplanatory_94a86438-126b-4cbb-98b3-765358f53d86NotDimensionallyQualified" 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_94a86438-126b-4cbb-98b3-765358f53d86NotDimensionallyQualified" xlink:type="arc" order="190"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_95f16d7d-7e58-473a-9d26-b4ac84c3dfb5NotDimensionallyQualified" 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_95f16d7d-7e58-473a-9d26-b4ac84c3dfb5NotDimensionallyQualified" xlink:type="arc" order="191"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory_e823cbe3-c763-402b-832f-8515cc39a142NotDimensionallyQualified" 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_e823cbe3-c763-402b-832f-8515cc39a142NotDimensionallyQualified" xlink:type="arc" order="192"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory_3326a96e-c8bc-4514-aaac-51873e424cf4NotDimensionallyQualified" 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_3326a96e-c8bc-4514-aaac-51873e424cf4NotDimensionallyQualified" xlink:type="arc" order="193"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory_57337eb2-4dae-4e5f-962c-a84225e9a146NotDimensionallyQualified" 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_57337eb2-4dae-4e5f-962c-a84225e9a146NotDimensionallyQualified" xlink:type="arc" order="194"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory_25c9270e-38ae-4f80-bfb3-f634dd76645dNotDimensionallyQualified" 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_25c9270e-38ae-4f80-bfb3-f634dd76645dNotDimensionallyQualified" xlink:type="arc" order="195"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRestrictedCashAndCashEquivalentsExplanatory_8beec362-e30e-45b2-98a9-5aab49f1eca4NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfRestrictedCashAndCashEquivalentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfRestrictedCashAndCashEquivalentsExplanatory_8beec362-e30e-45b2-98a9-5aab49f1eca4NotDimensionallyQualified" xlink:type="arc" order="196"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInventoriesExplanatory_added78f-615d-4b57-b504-7b21c5495966NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfInventoriesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInventoriesExplanatory_added78f-615d-4b57-b504-7b21c5495966NotDimensionallyQualified" xlink:type="arc" order="197"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsExplanatory_0c9c189a-5686-4c37-b989-764f0afa21b2NotDimensionallyQualified" 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_0c9c189a-5686-4c37-b989-764f0afa21b2NotDimensionallyQualified" xlink:type="arc" order="198"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_02cd1260-0b02-4e61-a43f-ebb75cb5c5aaNotDimensionallyQualified" 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_02cd1260-0b02-4e61-a43f-ebb75cb5c5aaNotDimensionallyQualified" xlink:type="arc" order="199"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEarningsPerShareExplanatory_3be790a5-6eb3-4a83-80f9-73dc3fbb0c3dNotDimensionallyQualified" 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_3be790a5-6eb3-4a83-80f9-73dc3fbb0c3dNotDimensionallyQualified" xlink:type="arc" order="200"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGoodwillExplanatory_3af9b59c-da14-4582-a285-eaa0b1f13f02NotDimensionallyQualified" 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_3af9b59c-da14-4582-a285-eaa0b1f13f02NotDimensionallyQualified" xlink:type="arc" order="201"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCashFlowStatementExplanatory_20de2c03-87cc-462a-8121-41e0ed6ecd83NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCashFlowStatementExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCashFlowStatementExplanatory_20de2c03-87cc-462a-8121-41e0ed6ecd83NotDimensionallyQualified" xlink:type="arc" order="202"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIncomeTaxExplanatory_697e2969-654e-4a0f-89a3-aadfb6d09754NotDimensionallyQualified" 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_697e2969-654e-4a0f-89a3-aadfb6d09754NotDimensionallyQualified" xlink:type="arc" order="203"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDeferredTaxesExplanatory_fadaaefc-fbf4-44b2-82b7-82b1d0562e96NotDimensionallyQualified" 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_fadaaefc-fbf4-44b2-82b7-82b1d0562e96NotDimensionallyQualified" xlink:type="arc" order="204"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_dc76d81a-60ed-4918-b6c0-5f1c07271faeNotDimensionallyQualified" 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_dc76d81a-60ed-4918-b6c0-5f1c07271faeNotDimensionallyQualified" xlink:type="arc" order="205"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinanceIncomeExplanatory_416c892a-57d4-43a1-a17d-d1905f41cd50NotDimensionallyQualified" 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_416c892a-57d4-43a1-a17d-d1905f41cd50NotDimensionallyQualified" xlink:type="arc" order="206"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutEmployeesExplanatory_429474cc-3db6-49d5-aacb-023ca64be5c7NotDimensionallyQualified" 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_429474cc-3db6-49d5-aacb-023ca64be5c7NotDimensionallyQualified" xlink:type="arc" order="207"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfExpensesExplanatory_7a82ebe0-f85c-42d3-8808-4cd3bdba19eeNotDimensionallyQualified" 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_7a82ebe0-f85c-42d3-8808-4cd3bdba19eeNotDimensionallyQualified" xlink:type="arc" order="208"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfExpensesByNatureExplanatory_3a150110-197b-4059-8dfb-2ed488d4d747NotDimensionallyQualified" 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_3a150110-197b-4059-8dfb-2ed488d4d747NotDimensionallyQualified" xlink:type="arc" order="209"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory_c6572afc-9079-4072-ae0a-84e7ff42af5aNotDimensionallyQualified" 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_c6572afc-9079-4072-ae0a-84e7ff42af5aNotDimensionallyQualified" xlink:type="arc" order="210"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherOperatingExpenseExplanatory_0bc516cf-639d-4f65-9135-b3c76b62867fNotDimensionallyQualified" 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_0bc516cf-639d-4f65-9135-b3c76b62867fNotDimensionallyQualified" xlink:type="arc" order="211"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGovernmentGrantsExplanatory_52d376d4-2d19-4439-88d8-719aceddd977NotDimensionallyQualified" 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_52d376d4-2d19-4439-88d8-719aceddd977NotDimensionallyQualified" xlink:type="arc" order="212"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRevenueExplanatory_11484c9e-3aa2-43ae-9cdd-94345bbdc199NotDimensionallyQualified" 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_11484c9e-3aa2-43ae-9cdd-94345bbdc199NotDimensionallyQualified" xlink:type="arc" order="213"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_6058dee1-8083-481d-bb19-090ebc237a7bNotDimensionallyQualified" 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_6058dee1-8083-481d-bb19-090ebc237a7bNotDimensionallyQualified" xlink:type="arc" order="214"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherPayablesExplanatory_308159ce-d273-4cdc-b364-3db65b439327NotDimensionallyQualified" 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_308159ce-d273-4cdc-b364-3db65b439327NotDimensionallyQualified" xlink:type="arc" order="215"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForGovernmentGrants_b3a48fa8-1df7-4ab9-a096-404fd5baa767NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForGovernmentGrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForGovernmentGrants_b3a48fa8-1df7-4ab9-a096-404fd5baa767NotDimensionallyQualified" xlink:type="arc" order="216"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory_d3b9ae5e-142e-4b97-b67c-cf91c016b2b9NotDimensionallyQualified" 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_d3b9ae5e-142e-4b97-b67c-cf91c016b2b9NotDimensionallyQualified" xlink:type="arc" order="217"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory_e917fbf1-71d7-45a9-a1c2-ba8402d4e6bbNotDimensionallyQualified" 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_e917fbf1-71d7-45a9-a1c2-ba8402d4e6bbNotDimensionallyQualified" xlink:type="arc" order="218"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_5ccedd29-1dad-4e62-9b87-dc91da22a0fdNotDimensionallyQualified" 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_5ccedd29-1dad-4e62-9b87-dc91da22a0fdNotDimensionallyQualified" xlink:type="arc" order="219"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory_2717713b-56d2-4229-a6c0-c3a6a4c38790NotDimensionallyQualified" 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_2717713b-56d2-4229-a6c0-c3a6a4c38790NotDimensionallyQualified" xlink:type="arc" order="220"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForServiceConcessionArrangementsExplanatory_041e402a-1e1e-459a-91bc-3b20df2f6338NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForServiceConcessionArrangementsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForServiceConcessionArrangementsExplanatory_041e402a-1e1e-459a-91bc-3b20df2f6338NotDimensionallyQualified" xlink:type="arc" order="221"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDepreciationExpenseExplanatory_c11ed159-1de5-4c7a-bdb1-bf36846c3a8bNotDimensionallyQualified" 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_c11ed159-1de5-4c7a-bdb1-bf36846c3a8bNotDimensionallyQualified" xlink:type="arc" order="222"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_1b215861-ed44-4063-a469-ff65e4d490b5NotDimensionallyQualified" 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_1b215861-ed44-4063-a469-ff65e4d490b5NotDimensionallyQualified" xlink:type="arc" order="223"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory_9cf7ab8e-9990-49f5-b7b6-dcca1beee381NotDimensionallyQualified" 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_9cf7ab8e-9990-49f5-b7b6-dcca1beee381NotDimensionallyQualified" xlink:type="arc" order="224"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfChangesInAccountingPoliciesExplanatory_42eb0443-e46a-4046-826e-6c3a0ff2397bNotDimensionallyQualified" 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_42eb0443-e46a-4046-826e-6c3a0ff2397bNotDimensionallyQualified" xlink:type="arc" order="225"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGoingConcernExplanatory_233c9247-3a46-4598-aa14-52242a7f3883NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfGoingConcernExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfGoingConcernExplanatory_233c9247-3a46-4598-aa14-52242a7f3883NotDimensionallyQualified" xlink:type="arc" order="226"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory_dc54852f-d949-4754-b056-fe54bef3e30dNotDimensionallyQualified" 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_dc54852f-d949-4754-b056-fe54bef3e30dNotDimensionallyQualified" xlink:type="arc" order="227"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory_f03b56b3-aac8-4973-afac-b73869861810NotDimensionallyQualified" 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_f03b56b3-aac8-4973-afac-b73869861810NotDimensionallyQualified" xlink:type="arc" order="228"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_0d42fd43-d563-4d7c-ae4d-418df22ef7f7NotDimensionallyQualified" 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_0d42fd43-d563-4d7c-ae4d-418df22ef7f7NotDimensionallyQualified" xlink:type="arc" order="229"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfLeasesExplanatory_c183ab1e-2d20-46ad-8dd1-edb28589b9edNotDimensionallyQualified" 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_c183ab1e-2d20-46ad-8dd1-edb28589b9edNotDimensionallyQualified" xlink:type="arc" order="230"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMarketRiskExplanatory_f6f9357c-6ddd-4b00-808a-33715d7f42f0NotDimensionallyQualified" 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_f6f9357c-6ddd-4b00-808a-33715d7f42f0NotDimensionallyQualified" xlink:type="arc" order="231"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory_6e77d7ed-a86c-45b9-9e1e-5859b64a45b0NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory_6e77d7ed-a86c-45b9-9e1e-5859b64a45b0NotDimensionallyQualified" xlink:type="arc" order="232"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory_4734b332-9cab-4229-8a55-b113c405f878NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory_4734b332-9cab-4229-8a55-b113c405f878NotDimensionallyQualified" xlink:type="arc" order="233"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory_9e812224-f2c3-4a07-9e7c-d026b9d37803NotDimensionallyQualified" 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_9e812224-f2c3-4a07-9e7c-d026b9d37803NotDimensionallyQualified" xlink:type="arc" order="234"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_c7166ea7-eb6b-4458-9b01-b0524ecf3b66NotDimensionallyQualified" 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_c7166ea7-eb6b-4458-9b01-b0524ecf3b66NotDimensionallyQualified" xlink:type="arc" order="235"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory_727b0522-fe03-4fca-be91-497ccab9e158NotDimensionallyQualified" 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_727b0522-fe03-4fca-be91-497ccab9e158NotDimensionallyQualified" xlink:type="arc" order="236"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory_8f7f7a27-da1d-4ce1-b064-dbdf800e465fNotDimensionallyQualified" 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_8f7f7a27-da1d-4ce1-b064-dbdf800e465fNotDimensionallyQualified" xlink:type="arc" order="237"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory_61770643-a1f8-4b7d-9e17-02aab9452e89NotDimensionallyQualified" 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_61770643-a1f8-4b7d-9e17-02aab9452e89NotDimensionallyQualified" xlink:type="arc" order="238"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForCustomerAcquisitionCostsExplanatory_3ec125fb-7d52-4a9d-9856-edd31882c7a7NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForCustomerAcquisitionCostsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForCustomerAcquisitionCostsExplanatory_3ec125fb-7d52-4a9d-9856-edd31882c7a7NotDimensionallyQualified" xlink:type="arc" order="239"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory_6e4fe342-c3f5-4060-9317-3ddf1b17ac4fNotDimensionallyQualified" 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_6e4fe342-c3f5-4060-9317-3ddf1b17ac4fNotDimensionallyQualified" xlink:type="arc" order="240"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociates_7b59ef0e-fc7c-4bbb-ab33-e5c671e442eaNotDimensionallyQualified" 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_7b59ef0e-fc7c-4bbb-ab33-e5c671e442eaNotDimensionallyQualified" xlink:type="arc" order="241"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentsInJointVentures_1d30c333-0d67-42c1-b780-3445d6d4d283NotDimensionallyQualified" 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_1d30c333-0d67-42c1-b780-3445d6d4d283NotDimensionallyQualified" xlink:type="arc" order="242"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfContingentLiabilitiesExplanatory_d99d8164-876d-42b3-9dd3-c779c0bcf739NotDimensionallyQualified" 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_d99d8164-876d-42b3-9dd3-c779c0bcf739NotDimensionallyQualified" xlink:type="arc" order="243"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinanceCostExplanatory_a6a93006-881f-4bfe-8697-f450fcd15949NotDimensionallyQualified" 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_a6a93006-881f-4bfe-8697-f450fcd15949NotDimensionallyQualified" xlink:type="arc" order="244"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory_331cf016-442d-4934-82b2-87e64e20a698NotDimensionallyQualified" 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_331cf016-442d-4934-82b2-87e64e20a698NotDimensionallyQualified" xlink:type="arc" order="245"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory_972a8e81-9648-49af-8dad-a97636f907b8NotDimensionallyQualified" 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_972a8e81-9648-49af-8dad-a97636f907b8NotDimensionallyQualified" xlink:type="arc" order="246"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory_f914c9ad-d36b-4bda-ae9c-5c8eae552570NotDimensionallyQualified" 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_f914c9ad-d36b-4bda-ae9c-5c8eae552570NotDimensionallyQualified" xlink:type="arc" order="247"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory_ef6cbb1a-4329-44db-bb73-9b8e9ee8fa9aNotDimensionallyQualified" 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_ef6cbb1a-4329-44db-bb73-9b8e9ee8fa9aNotDimensionallyQualified" xlink:type="arc" order="248"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory_4818fe7c-65b0-4f98-8778-86c59fa3de18NotDimensionallyQualified" 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_4818fe7c-65b0-4f98-8778-86c59fa3de18NotDimensionallyQualified" xlink:type="arc" order="249"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfServiceConcessionArrangementsExplanatory_209fe62e-9a3b-4e63-b396-78afc0d1899fNotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfServiceConcessionArrangementsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfServiceConcessionArrangementsExplanatory_209fe62e-9a3b-4e63-b396-78afc0d1899fNotDimensionallyQualified" xlink:type="arc" order="250"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory_6013d3f3-98d5-4d3e-86de-2d9405d716dbNotDimensionallyQualified" 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_6013d3f3-98d5-4d3e-86de-2d9405d716dbNotDimensionallyQualified" xlink:type="arc" order="251"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory_8efbb3ab-9e18-4a6f-b826-e958f2e55d8fNotDimensionallyQualified" 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_8efbb3ab-9e18-4a6f-b826-e958f2e55d8fNotDimensionallyQualified" xlink:type="arc" order="252"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory_460122f8-3441-4eb5-8263-5e4ad439b68aNotDimensionallyQualified" 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_460122f8-3441-4eb5-8263-5e4ad439b68aNotDimensionallyQualified" xlink:type="arc" order="253"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_4e6328b2-aecf-46bd-b47f-05f080158254NotDimensionallyQualified" 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_4e6328b2-aecf-46bd-b47f-05f080158254NotDimensionallyQualified" xlink:type="arc" order="254"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory_c8fcafb9-42b1-4351-b0c6-cd65c25f7befNotDimensionallyQualified" 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_c8fcafb9-42b1-4351-b0c6-cd65c25f7befNotDimensionallyQualified" xlink:type="arc" order="255"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociatesAndJointVenturesExplanatory_8d457505-033c-4f9e-9ae4-2d8ea2680382NotDimensionallyQualified" 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_8d457505-033c-4f9e-9ae4-2d8ea2680382NotDimensionallyQualified" xlink:type="arc" order="256"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_96fe0c20-6089-43ab-b9a7-fed226ed63a9NotDimensionallyQualified" 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_96fe0c20-6089-43ab-b9a7-fed226ed63a9NotDimensionallyQualified" xlink:type="arc" order="257"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory_b7793651-86aa-4b1f-8cb1-5b3b60b38c95NotDimensionallyQualified" 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_b7793651-86aa-4b1f-8cb1-5b3b60b38c95NotDimensionallyQualified" xlink:type="arc" order="258"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_8bda8f6a-94f5-44c4-8c2f-8edfdb0a62c8NotDimensionallyQualified" 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_8bda8f6a-94f5-44c4-8c2f-8edfdb0a62c8NotDimensionallyQualified" xlink:type="arc" order="259"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory_6b7fb467-1c3c-4389-8b1d-1632978b9a93NotDimensionallyQualified" 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_6b7fb467-1c3c-4389-8b1d-1632978b9a93NotDimensionallyQualified" xlink:type="arc" order="260"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_b0a55567-2f69-47f5-b261-304a296fc38bNotDimensionallyQualified" 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_b0a55567-2f69-47f5-b261-304a296fc38bNotDimensionallyQualified" xlink:type="arc" order="261"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory_29c7901b-a8fd-475a-84cf-560dec169d59NotDimensionallyQualified" 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_29c7901b-a8fd-475a-84cf-560dec169d59NotDimensionallyQualified" xlink:type="arc" order="262"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory_1dfe037c-9326-42a1-a5e9-f0379998fd62NotDimensionallyQualified" 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_1dfe037c-9326-42a1-a5e9-f0379998fd62NotDimensionallyQualified" xlink:type="arc" order="263"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory_019c6134-74e6-7ae0-8b57-721aa27f65d3NotDimensionallyQualified" 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_019c6134-74e6-7ae0-8b57-721aa27f65d3NotDimensionallyQualified" xlink:type="arc" order="264"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherNoncurrentLiabilitiesExplanatory_019c613c-2719-7bf2-9328-3b793176b011NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherNoncurrentLiabilitiesExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherNoncurrentLiabilitiesExplanatory_019c613c-2719-7bf2-9328-3b793176b011NotDimensionallyQualified" xlink:type="arc" order="265"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory_019c6143-b745-75e9-acc8-5b4fe67a6a60NotDimensionallyQualified" 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_019c6143-b745-75e9-acc8-5b4fe67a6a60NotDimensionallyQualified" xlink:type="arc" order="266"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherNoncurrentAssetsExplanatory_019c70ca-e326-72fa-bd4a-67de174e22d0NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfOtherNoncurrentAssetsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherNoncurrentAssetsExplanatory_019c70ca-e326-72fa-bd4a-67de174e22d0NotDimensionallyQualified" xlink:type="arc" order="267"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBorrowingCostsExplanatory_019c8b2a-0420-7107-aa09-12b6e39fd6f1NotDimensionallyQualified" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DisclosureOfBorrowingCostsExplanatory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfBorrowingCostsExplanatory_019c8b2a-0420-7107-aa09-12b6e39fd6f1NotDimensionallyQualified" xlink:type="arc" order="268"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory_019c8b37-714c-7cfa-a539-dead4e9f99dfNotDimensionallyQualified" 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_019c8b37-714c-7cfa-a539-dead4e9f99dfNotDimensionallyQualified" xlink:type="arc" order="269"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory_019c910b-333e-7da6-9322-a7533e5fecc3NotDimensionallyQualified" 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_019c910b-333e-7da6-9322-a7533e5fecc3NotDimensionallyQualified" xlink:type="arc" order="270"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.ferrovial.com/role/Anchoring" xlink:type="simple" xlink:href="fer-2025-12-31.xsd#Anchoring"/>
  <link:definitionLink xlink:role="http://www.ferrovial.com/role/Anchoring" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_fer_AdjustmentForNetProfitLossFromDiscontinuedOperations_46d5de03-340e-4367-b96f-a57d9f3ce4cf" xlink:href="fer-2025-12-31.xsd#fer_AdjustmentForNetProfitLossFromDiscontinuedOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital" 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://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital" xlink:to="loc_fer_AdjustmentForNetProfitLossFromDiscontinuedOperations_46d5de03-340e-4367-b96f-a57d9f3ce4cf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_AdjustmentsForImpairmentAndDisposalOfFixedAssets_a09a2541-2302-46af-9ffa-62e436b123c2" xlink:href="fer-2025-12-31.xsd#fer_AdjustmentsForImpairmentAndDisposalOfFixedAssets"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital" xlink:to="loc_fer_AdjustmentsForImpairmentAndDisposalOfFixedAssets_a09a2541-2302-46af-9ffa-62e436b123c2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_fer_AdjustmentsForImpairmentAndDisposalOfFixedAssets_a09a2541-2302-46af-9ffa-62e436b123c2" xlink:to="loc_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_fer_AdjustmentsForImpairmentAndDisposalOfFixedAssets_a09a2541-2302-46af-9ffa-62e436b123c2" xlink:to="loc_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_AdjustmentsForNonControllingInterests_19082524-a288-4ae6-a176-16b42d3122fb" xlink:href="fer-2025-12-31.xsd#fer_AdjustmentsForNonControllingInterests"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital" xlink:to="loc_fer_AdjustmentsForNonControllingInterests_19082524-a288-4ae6-a176-16b42d3122fb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_CashAndCashEquivalentsExcludingInfrastructureProjects_c23e417a-d5cd-48f6-a859-8f5f73c5afb6" xlink:href="fer-2025-12-31.xsd#fer_CashAndCashEquivalentsExcludingInfrastructureProjects"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalents" 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://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_CashAndCashEquivalents" xlink:to="loc_fer_CashAndCashEquivalentsExcludingInfrastructureProjects_c23e417a-d5cd-48f6-a859-8f5f73c5afb6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_CashAndCashEquivalentsInfrastructureProjects_35e1ffd6-d530-44a3-89ca-be5102888fe2" xlink:href="fer-2025-12-31.xsd#fer_CashAndCashEquivalentsInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_CashAndCashEquivalents" xlink:to="loc_fer_CashAndCashEquivalentsInfrastructureProjects_35e1ffd6-d530-44a3-89ca-be5102888fe2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_CashFlowsFromDivestmentsInSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_a310041f-435a-4025-b805-ffc7c961c684" xlink:href="fer-2025-12-31.xsd#fer_CashFlowsFromDivestmentsInSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities"/>
    <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_fer_CashFlowsFromDivestmentsInSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_a310041f-435a-4025-b805-ffc7c961c684" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod" 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://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_fer_CashFlowsFromDivestmentsInSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_a310041f-435a-4025-b805-ffc7c961c684" xlink:to="loc_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromSalesOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_fer_CashFlowsFromDivestmentsInSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_a310041f-435a-4025-b805-ffc7c961c684" xlink:to="loc_ifrs-full_ProceedsFromSalesOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOfInterestsInAssociates" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromSalesOfInterestsInAssociates"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_fer_CashFlowsFromDivestmentsInSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_a310041f-435a-4025-b805-ffc7c961c684" xlink:to="loc_ifrs-full_ProceedsFromSalesOfInterestsInAssociates" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations" 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://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_fer_CashFlowsFromDivestmentsInSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_a310041f-435a-4025-b805-ffc7c961c684" xlink:to="loc_ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_CurrentDebtSecuritiesAndBankBorrowingsExcludingInfrastructureProjects_5ca9bd89-16b4-4a28-a933-a405aeeda601" xlink:href="fer-2025-12-31.xsd#fer_CurrentDebtSecuritiesAndBankBorrowingsExcludingInfrastructureProjects"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentNotesAndDebenturesIssuedAndCurrentPortionOfNoncurrentNotesAndDebenturesIssued" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentNotesAndDebenturesIssuedAndCurrentPortionOfNoncurrentNotesAndDebenturesIssued"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_CurrentNotesAndDebenturesIssuedAndCurrentPortionOfNoncurrentNotesAndDebenturesIssued" xlink:to="loc_fer_CurrentDebtSecuritiesAndBankBorrowingsExcludingInfrastructureProjects_5ca9bd89-16b4-4a28-a933-a405aeeda601" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_CurrentDebtSecuritiesAndBankBorrowingsInfrastructureProjects_57f4a110-445e-405a-9678-d53c05fb47c7" xlink:href="fer-2025-12-31.xsd#fer_CurrentDebtSecuritiesAndBankBorrowingsInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_CurrentNotesAndDebenturesIssuedAndCurrentPortionOfNoncurrentNotesAndDebenturesIssued" xlink:to="loc_fer_CurrentDebtSecuritiesAndBankBorrowingsInfrastructureProjects_57f4a110-445e-405a-9678-d53c05fb47c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_CurrentRestrictedCashAndCashEquivalentsInfrastructureProjects_019b21e8-3b2c-749e-8e66-012ded94e331" xlink:href="fer-2025-12-31.xsd#fer_CurrentRestrictedCashAndCashEquivalentsInfrastructureProjects"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentRestrictedCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentRestrictedCashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_CurrentRestrictedCashAndCashEquivalents" xlink:to="loc_fer_CurrentRestrictedCashAndCashEquivalentsInfrastructureProjects_019b21e8-3b2c-749e-8e66-012ded94e331" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_FinancialResultOnFinancingExcludingInfrastructureProjects_111b12e4-ebc0-4ff0-9bec-8c0ef74fce15" xlink:href="fer-2025-12-31.xsd#fer_FinancialResultOnFinancingExcludingInfrastructureProjects"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinanceIncomeCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinanceIncomeCost"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_FinanceIncomeCost" xlink:to="loc_fer_FinancialResultOnFinancingExcludingInfrastructureProjects_111b12e4-ebc0-4ff0-9bec-8c0ef74fce15" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_FinancialResultOnFinancingInfrastructureProjects_b763d153-88b7-45e1-a012-147816240b0a" xlink:href="fer-2025-12-31.xsd#fer_FinancialResultOnFinancingInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_FinanceIncomeCost" xlink:to="loc_fer_FinancialResultOnFinancingInfrastructureProjects_b763d153-88b7-45e1-a012-147816240b0a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_FixedAssetsInInfrastructureProjectsIntangibleAssetModel_5306cf42-266c-4fb0-a908-c14b5cc2c26b" xlink:href="fer-2025-12-31.xsd#fer_FixedAssetsInInfrastructureProjectsIntangibleAssetModel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherIntangibleAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherIntangibleAssets" xlink:to="loc_fer_FixedAssetsInInfrastructureProjectsIntangibleAssetModel_5306cf42-266c-4fb0-a908-c14b5cc2c26b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfEquityAccountedCompanies_8a0b22ee-0459-48fd-ba44-fb32772a457b" xlink:href="fer-2025-12-31.xsd#fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfEquityAccountedCompanies"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:to="loc_fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfEquityAccountedCompanies_8a0b22ee-0459-48fd-ba44-fb32772a457b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfFullyConsolidatedCompanies_466fb06a-3067-41aa-b830-281bf503ff4b" xlink:href="fer-2025-12-31.xsd#fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfFullyConsolidatedCompanies"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax" 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://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax" xlink:to="loc_fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfFullyConsolidatedCompanies_466fb06a-3067-41aa-b830-281bf503ff4b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfHeldForSale_e7032806-1f11-4f1c-a43f-ad18866b1878" xlink:href="fer-2025-12-31.xsd#fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfHeldForSale"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax" xlink:to="loc_fer_GainsLossesOnExchangeDifferencesOnTranslationBeforeTaxOfHeldForSale_e7032806-1f11-4f1c-a43f-ad18866b1878" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_GainsOrLossesOnDisposalOfNonCurrentAssetsAndImpairments_1a9666fe-8368-4575-88ca-0d17b2a6f5d3" xlink:href="fer-2025-12-31.xsd#fer_GainsOrLossesOnDisposalOfNonCurrentAssetsAndImpairments"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherGainsLosses" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherGainsLosses"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherGainsLosses" xlink:to="loc_fer_GainsOrLossesOnDisposalOfNonCurrentAssetsAndImpairments_1a9666fe-8368-4575-88ca-0d17b2a6f5d3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_fer_GainsOrLossesOnDisposalOfNonCurrentAssetsAndImpairments_1a9666fe-8368-4575-88ca-0d17b2a6f5d3" xlink:to="loc_ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssets" xlink:type="arc" order="1"/>
    <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_fer_GainsOrLossesOnDisposalOfNonCurrentAssetsAndImpairments_1a9666fe-8368-4575-88ca-0d17b2a6f5d3" xlink:to="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfCompaniesHeldForSale_f5e3ab7b-6e31-4766-a699-fe11bf5c3211" xlink:href="fer-2025-12-31.xsd#fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfCompaniesHeldForSale"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss" 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://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss" xlink:to="loc_fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfCompaniesHeldForSale_f5e3ab7b-6e31-4766-a699-fe11bf5c3211" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfEquityAccountedCompanies_b705e3b9-10f5-48e4-8960-cafcff45aea5" xlink:href="fer-2025-12-31.xsd#fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfEquityAccountedCompanies"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxRelatingToShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLoss"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncomeTaxRelatingToShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLoss" xlink:to="loc_fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfEquityAccountedCompanies_b705e3b9-10f5-48e4-8960-cafcff45aea5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfFullyConsolidatedCompanies_16fc1934-cad3-4895-9cbc-a0cd5a3a70d8" xlink:href="fer-2025-12-31.xsd#fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfFullyConsolidatedCompanies"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss" xlink:to="loc_fer_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAndExpensesDirectlyRecognisesInEquityOfFullyConsolidatedCompanies_16fc1934-cad3-4895-9cbc-a0cd5a3a70d8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_IncomeTaxRelatingToOtherComprehensiveIncomeAndExpensesReclassifiedToProfitOrLossOfFullyConsolidatedCompanies_a88d8fd5-e544-47e1-91aa-1b69536c24a7" xlink:href="fer-2025-12-31.xsd#fer_IncomeTaxRelatingToOtherComprehensiveIncomeAndExpensesReclassifiedToProfitOrLossOfFullyConsolidatedCompanies"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss" xlink:to="loc_fer_IncomeTaxRelatingToOtherComprehensiveIncomeAndExpensesReclassifiedToProfitOrLossOfFullyConsolidatedCompanies_a88d8fd5-e544-47e1-91aa-1b69536c24a7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_IncomeTaxRelatingToOtherComprehensiveIncomeAndExpensesReclassifiedToProfitOrLossOfHeldForSaleCompanies_9ec045a1-c839-4bfa-a7fb-594bb789c904" xlink:href="fer-2025-12-31.xsd#fer_IncomeTaxRelatingToOtherComprehensiveIncomeAndExpensesReclassifiedToProfitOrLossOfHeldForSaleCompanies"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss" xlink:to="loc_fer_IncomeTaxRelatingToOtherComprehensiveIncomeAndExpensesReclassifiedToProfitOrLossOfHeldForSaleCompanies_9ec045a1-c839-4bfa-a7fb-594bb789c904" xlink:type="arc" order="1"/>
    <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_fer_IncomeTaxRelatingToOtherComprehensiveIncomeAndExpensesReclassifiedToProfitOrLossOfHeldForSaleCompanies_9ec045a1-c839-4bfa-a7fb-594bb789c904" xlink:to="loc_ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationBeforeTax" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_IncreaseDecreaseInTreasuryShareRepurchaseInEquity_d184c05f-5298-4482-a2a4-49afe8b67038" xlink:href="fer-2025-12-31.xsd#fer_IncreaseDecreaseInTreasuryShareRepurchaseInEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfTreasuryShares" 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://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_PurchaseOfTreasuryShares" xlink:to="loc_fer_IncreaseDecreaseInTreasuryShareRepurchaseInEquity_d184c05f-5298-4482-a2a4-49afe8b67038" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_InvestmentsInInfrastructureProjects_0ee33c50-f3c8-4c92-a994-af7870260421" xlink:href="fer-2025-12-31.xsd#fer_InvestmentsInInfrastructureProjects"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:to="loc_fer_InvestmentsInInfrastructureProjects_0ee33c50-f3c8-4c92-a994-af7870260421" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_InvestmentsInInfrastructureProjectsFinancialAssetModel_8c26efc5-56c8-4c0d-95be-978e70b3e7d5" xlink:href="fer-2025-12-31.xsd#fer_InvestmentsInInfrastructureProjectsFinancialAssetModel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentFinancialAssets"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_NoncurrentFinancialAssets" xlink:to="loc_fer_InvestmentsInInfrastructureProjectsFinancialAssetModel_8c26efc5-56c8-4c0d-95be-978e70b3e7d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_InvestmentsInPropertyPlantAndEquipmentAndIntangibleAssets_fdd0b306-b1c6-416b-b033-e2047d635e82" xlink:href="fer-2025-12-31.xsd#fer_InvestmentsInPropertyPlantAndEquipmentAndIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:to="loc_fer_InvestmentsInPropertyPlantAndEquipmentAndIntangibleAssets_fdd0b306-b1c6-416b-b033-e2047d635e82" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" 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://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_fer_InvestmentsInPropertyPlantAndEquipmentAndIntangibleAssets_fdd0b306-b1c6-416b-b033-e2047d635e82" xlink:to="loc_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" 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://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_fer_InvestmentsInPropertyPlantAndEquipmentAndIntangibleAssets_fdd0b306-b1c6-416b-b033-e2047d635e82" xlink:to="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_MergerImpact_99147472-41ae-4a42-bac0-8da84c38b6d1" xlink:href="fer-2025-12-31.xsd#fer_MergerImpact"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughTransactionsWithOwners" xlink:to="loc_fer_MergerImpact_99147472-41ae-4a42-bac0-8da84c38b6d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_NonCurrentDebtSecuritiesAndBankBorrowingsExcludingInfrastructureProjects_87ae8397-3c3f-4f68-9bd1-bcf5cea11f4f" xlink:href="fer-2025-12-31.xsd#fer_NonCurrentDebtSecuritiesAndBankBorrowingsExcludingInfrastructureProjects"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentPortionOfNoncurrentNotesAndDebenturesIssued" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentPortionOfNoncurrentNotesAndDebenturesIssued"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_NoncurrentPortionOfNoncurrentNotesAndDebenturesIssued" xlink:to="loc_fer_NonCurrentDebtSecuritiesAndBankBorrowingsExcludingInfrastructureProjects_87ae8397-3c3f-4f68-9bd1-bcf5cea11f4f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_NonCurrentDebtSecuritiesAndBankBorrowingsInfrastructureProjects_1476b5dc-ae25-49b9-abcf-bd420cd89512" xlink:href="fer-2025-12-31.xsd#fer_NonCurrentDebtSecuritiesAndBankBorrowingsInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_NoncurrentPortionOfNoncurrentNotesAndDebenturesIssued" xlink:to="loc_fer_NonCurrentDebtSecuritiesAndBankBorrowingsInfrastructureProjects_1476b5dc-ae25-49b9-abcf-bd420cd89512" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherCashAndCashEquivalentsInfrastructureProjects_e3f26077-28de-4fa8-b7ec-2e04049ce9ed" xlink:href="fer-2025-12-31.xsd#fer_OtherCashAndCashEquivalentsInfrastructureProjects"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherCashAndCashEquivalents" 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://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherCashAndCashEquivalents" xlink:to="loc_fer_OtherCashAndCashEquivalentsInfrastructureProjects_e3f26077-28de-4fa8-b7ec-2e04049ce9ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfCompaniesHeldForSale_21072d8c-8def-4dbd-b2d0-a8a86e0f329b" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfCompaniesHeldForSale"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax" 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://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax" xlink:to="loc_fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfCompaniesHeldForSale_21072d8c-8def-4dbd-b2d0-a8a86e0f329b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfEquityAccountedCompanies_1e92c4f9-9d15-42d2-a8e7-72f6fdcd2ab3" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfEquityAccountedCompanies"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:to="loc_fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfEquityAccountedCompanies_1e92c4f9-9d15-42d2-a8e7-72f6fdcd2ab3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfFullyConsolidatedCompanies_1c36ad07-d6d8-4d59-9820-49c7eaa2117a" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfFullyConsolidatedCompanies"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax" xlink:to="loc_fer_OtherComprehensiveIncomeBeforeTaxCashFlowHedgesOfFullyConsolidatedCompanies_1c36ad07-d6d8-4d59-9820-49c7eaa2117a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossBeforeTaxOfFullyConsolidatedCompanies_2779472c-3f9e-43e4-8969-315124b6c905" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossBeforeTaxOfFullyConsolidatedCompanies"/>
    <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_fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossBeforeTaxOfFullyConsolidatedCompanies_2779472c-3f9e-43e4-8969-315124b6c905" xlink:type="arc" order="1"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossBeforeTaxOfFullyConsolidatedCompanies_2779472c-3f9e-43e4-8969-315124b6c905" xlink:to="loc_ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationBeforeTax" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossBeforeTaxOfHeldForSaleCompanies_cfe51bff-6d03-48b4-86c3-03bb1288fa17" xlink:href="fer-2025-12-31.xsd#fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossBeforeTaxOfHeldForSaleCompanies"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:to="loc_fer_OtherComprehensiveIncomeReclassifiedToProfitOrLossBeforeTaxOfHeldForSaleCompanies_cfe51bff-6d03-48b4-86c3-03bb1288fa17" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherMovementsInShareholdersFunds_80fe60f8-3618-45c9-8269-a8a24f951fad" xlink:href="fer-2025-12-31.xsd#fer_OtherMovementsInShareholdersFunds"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" 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://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="loc_fer_OtherMovementsInShareholdersFunds_80fe60f8-3618-45c9-8269-a8a24f951fad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherTreasuryRepurchaseInEquityInstruments_bcc96a70-0b0a-471a-9fc4-9b61b84a5930" xlink:href="fer-2025-12-31.xsd#fer_OtherTreasuryRepurchaseInEquityInstruments"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_PurchaseOfTreasuryShares" xlink:to="loc_fer_OtherTreasuryRepurchaseInEquityInstruments_bcc96a70-0b0a-471a-9fc4-9b61b84a5930" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_OtherTreasurySharesRepurchase_67f31079-5cb3-4856-b818-56b3df40471b" xlink:href="fer-2025-12-31.xsd#fer_OtherTreasurySharesRepurchase"/>
    <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_fer_OtherTreasurySharesRepurchase_67f31079-5cb3-4856-b818-56b3df40471b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_PerpetualSubordinatedBonds_78bd0f96-506c-47e7-a0bd-3238b7ee3dfb" xlink:href="fer-2025-12-31.xsd#fer_PerpetualSubordinatedBonds"/>
    <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_fer_PerpetualSubordinatedBonds_78bd0f96-506c-47e7-a0bd-3238b7ee3dfb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_ResultOnDerivativesAndOtherFinancialResultsExcludingInfrastructureProjects_524e39c1-0041-422d-8149-d2d8d58b8117" xlink:href="fer-2025-12-31.xsd#fer_ResultOnDerivativesAndOtherFinancialResultsExcludingInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_FinanceIncomeCost" xlink:to="loc_fer_ResultOnDerivativesAndOtherFinancialResultsExcludingInfrastructureProjects_524e39c1-0041-422d-8149-d2d8d58b8117" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsOnChangeInFairValueOfDerivatives" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsOnChangeInFairValueOfDerivatives"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_fer_ResultOnDerivativesAndOtherFinancialResultsExcludingInfrastructureProjects_524e39c1-0041-422d-8149-d2d8d58b8117" xlink:to="loc_ifrs-full_GainsOnChangeInFairValueOfDerivatives" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_ResultOnDerivativesAndOtherFinancialResultsInfrastructureProjects_0cf49483-0835-426f-b005-3ee034fa76d0" xlink:href="fer-2025-12-31.xsd#fer_ResultOnDerivativesAndOtherFinancialResultsInfrastructureProjects"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_FinanceIncomeCost" xlink:to="loc_fer_ResultOnDerivativesAndOtherFinancialResultsInfrastructureProjects_0cf49483-0835-426f-b005-3ee034fa76d0" xlink:type="arc" order="1"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_fer_ResultOnDerivativesAndOtherFinancialResultsInfrastructureProjects_0cf49483-0835-426f-b005-3ee034fa76d0" xlink:to="loc_ifrs-full_GainsOnChangeInFairValueOfDerivatives" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fer_TreasurySharesPurchasesFromFinancingActivities_d466577d-fbea-403b-ad50-6124b7202a9d" xlink:href="fer-2025-12-31.xsd#fer_TreasurySharesPurchasesFromFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:to="loc_fer_TreasurySharesPurchasesFromFinancingActivities_d466577d-fbea-403b-ad50-6124b7202a9d" xlink:type="arc" order="1"/>
  </link:definitionLink>
</link:linkbase>
