<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated by Fujitsu Interstage XWand B0250 -->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:ams="http://www.amadeus.com/xbrl/20211231" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
  <link:roleRef roleURI="http://www.amadeus.com/role/Anchoring" xlink:type="simple" xlink:href="ams-2021-12-31.xsd#Anchoring"/>
  <link:roleRef roleURI="http://www.amadeus.com/role/StatementConsolidatedStatementsOfChangesInEquity" xlink:type="simple" xlink:href="ams-2021-12-31.xsd#StatementConsolidatedStatementsOfChangesInEquity"/>
  <link:roleRef roleURI="http://www.esma.europa.eu/xbrl/role/ext/BlockDefaultUseOfLineItemsScenario" xlink:type="simple" xlink:href="http://www.esma.europa.eu/taxonomy/ext/technical.xsd#BlockDefaultUseOfLineItemsScenario"/>
  <link:roleRef roleURI="http://www.esma.europa.eu/xbrl/role/ext/BlockDefaultUseOfLineItemsSegment" xlink:type="simple" xlink:href="http://www.esma.europa.eu/taxonomy/ext/technical.xsd#BlockDefaultUseOfLineItemsSegment"/>
  <link:roleRef roleURI="http://www.esma.europa.eu/xbrl/role/cor/esef_role-999999" xlink:type="simple" xlink:href="http://www.esma.europa.eu/taxonomy/2020-03-16/esef_cor.xsd#esef_role-999999"/>
  <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: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/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <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/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.amadeus.com/role/Anchoring">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherPropertyPlantAndEquipment" xlink:label="OtherPropertyPlantAndEquipment" xlink:title="OtherPropertyPlantAndEquipment"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_EquiposDeProcesoDeDatos" xlink:label="EquiposDeProcesoDeDatos" xlink:title="EquiposDeProcesoDeDatos"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="OtherPropertyPlantAndEquipment" xlink:to="EquiposDeProcesoDeDatos" xlink:title="definition: OtherPropertyPlantAndEquipment to EquiposDeProcesoDeDatos" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashAndCashEquivalents" xlink:label="CashAndCashEquivalents" xlink:title="CashAndCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_EfectivoYEquivalentesAlEfectivoNeto" xlink:label="CashAndCashEquivalentsNet" xlink:title="CashAndCashEquivalentsNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="CashAndCashEquivalents" xlink:to="CashAndCashEquivalentsNet" xlink:title="definition: CashAndCashEquivalents to CashAndCashEquivalentsNet" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_InversionesRealizadasParaActividadesDeGestionDeCaja" xlink:label="InversionesRealizadasParaActividadesDeGestionDeCaja" xlink:title="InversionesRealizadasParaActividadesDeGestionDeCaja"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="CashAndCashEquivalents" xlink:to="InversionesRealizadasParaActividadesDeGestionDeCaja" xlink:title="definition: CashAndCashEquivalents to InversionesRealizadasParaActividadesDeGestionDeCaja" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_LineaDeCreditoNoDispuesta" xlink:label="LineaDeCreditoNoDispuesta" xlink:title="LineaDeCreditoNoDispuesta"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="CashAndCashEquivalents" xlink:to="LineaDeCreditoNoDispuesta" xlink:title="definition: CashAndCashEquivalents to LineaDeCreditoNoDispuesta" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentAssets" xlink:label="CurrentAssets" xlink:title="CurrentAssets"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_ActivosMantenidosParaLaVenta" xlink:label="ActivosMantenidosParaLaVenta" xlink:title="ActivosMantenidosParaLaVenta"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="CurrentAssets" xlink:to="ActivosMantenidosParaLaVenta" xlink:title="definition: CurrentAssets to ActivosMantenidosParaLaVenta" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentLiabilities" xlink:label="CurrentLiabilities" xlink:title="CurrentLiabilities"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_PasivosRelacionadosConActivosMantenidosParaLaVenta" xlink:label="PasivosRelacionadosConActivosMantenidosParaLaVenta" xlink:title="PasivosRelacionadosConActivosMantenidosParaLaVenta"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="CurrentLiabilities" xlink:to="PasivosRelacionadosConActivosMantenidosParaLaVenta" xlink:title="definition: CurrentLiabilities to PasivosRelacionadosConActivosMantenidosParaLaVenta" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:label="CashFlowsFromUsedInOperatingActivities" xlink:title="CashFlowsFromUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_PagosDeAcuerdosDeConfirming" xlink:label="PagosDeAcuerdosDeConfirming" xlink:title="PagosDeAcuerdosDeConfirming"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="CashFlowsFromUsedInOperatingActivities" xlink:to="PagosDeAcuerdosDeConfirming" xlink:title="definition: CashFlowsFromUsedInOperatingActivities to PagosDeAcuerdosDeConfirming" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities" xlink:label="CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities" xlink:title="CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_TesoreriaObtenidaDeContratosDeDerivados" xlink:label="TesoreriaObtenidaDeContratosDeDerivados" xlink:title="TesoreriaObtenidaDeContratosDeDerivados"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities" xlink:to="TesoreriaObtenidaDeContratosDeDerivados" xlink:title="definition: CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities to TesoreriaObtenidaDeContratosDeDerivados" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Equity" xlink:label="Equity" xlink:title="Equity"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_OtrosCambiosEnElPatrimonio" xlink:label="OtrosCambiosEnPatrimonio" xlink:title="OtrosCambiosEnPatrimonio"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="Equity" xlink:to="OtrosCambiosEnPatrimonio" xlink:title="definition: Equity to OtrosCambiosEnPatrimonio" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense" xlink:label="AdjustmentsForDepreciationAndAmortisationExpense" xlink:title="AdjustmentsForDepreciationAndAmortisationExpense"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_DepreciacionYAmortizacion" xlink:label="DepreciacionYAmortizacion" xlink:title="DepreciacionYAmortizacion"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="AdjustmentsForDepreciationAndAmortisationExpense" xlink:to="DepreciacionYAmortizacion" xlink:title="definition: AdjustmentsForDepreciationAndAmortisationExpense to DepreciacionYAmortizacion" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities" xlink:label="CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities" xlink:title="CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_PrestamosATerceros" xlink:label="PrestamosATerceros" xlink:title="PrestamosATerceros"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities" xlink:to="PrestamosATerceros" xlink:title="definition: CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities to PrestamosATerceros" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:label="CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:title="CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_InversionNetaEnSociedadesDependientesYEmpresasAsociadas" xlink:label="InversionNetaEnSociedadesDependientesYEmpresasAsociadas" xlink:title="InversionNetaEnSociedadesDependientesYEmpresasAsociadas"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:to="InversionNetaEnSociedadesDependientesYEmpresasAsociadas" xlink:title="definition: CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities to InversionNetaEnSociedadesDependientesYEmpresasAsociadas" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl" xlink:label="DerecognitionOfNoncontrollingInterests" xlink:title="DerecognitionOfNoncontrollingInterests"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_RetiroDeParticipacionesNoDominantes" xlink:label="RetiroDeParticipacionesNoDominantes" xlink:title="RetiroDeParticpacionesNoDominantes"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="DerecognitionOfNoncontrollingInterests" xlink:to="RetiroDeParticipacionesNoDominantes" xlink:title="definition: IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl to RetiroDeParticipacionesNoDominantes" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherIntangibleAssets" xlink:label="OtherIntangibleAssets" xlink:title="OtherIntangibleAssets"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_RelacionesContractuales" xlink:label="RelacionesContractuales" xlink:title="RelacionesContractuales"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="OtherIntangibleAssets" xlink:to="RelacionesContractuales" xlink:title="definition: OtherIntangibleAssets to RelacionesContractuales" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherReserves" xlink:label="OtherReserves" xlink:title="OtherReserves"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_GananciasPerdidasAcumuladasNoRealizadas" xlink:label="GananciasPerdidasAcumuladasNoRealizadas" xlink:title="GananciasPerdidasAcumuladasNoRealizadas"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="OtherReserves" xlink:to="GananciasPerdidasAcumuladasNoRealizadas" xlink:title="definition: OtherReserves to GananciasPerdidasAcumuladasNoRealizadas" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_RetainedEarnings" xlink:label="RetainedEarnings" xlink:title="RetainedEarnings"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_ReservasYResultadosAcumulados" xlink:label="ReservasResultadosAcumulados" xlink:title="ReservasResultadosAcumulados"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="RetainedEarnings" xlink:to="ReservasResultadosAcumulados" xlink:title="definition: RetainedEarnings to ReservasResultadosAcumulados" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_GananciaPerdidaAtribuibleALosPropietariosDeLaDominante" xlink:label="GananciaPerdidaAtribuibleAPropietariosDeLaDominante" xlink:title="GananciaPerdidaAtribuibleAPropietariosDeLaDominante"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="RetainedEarnings" xlink:to="GananciaPerdidaAtribuibleAPropietariosDeLaDominante" xlink:title="definition: RetainedEarnings to GananciaPerdidaAtribuibleAPropietariosDeLaDominante" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_SaleOrIssueOfTreasuryShares" xlink:label="SaleOrIssueOfTreasuryShares" xlink:title="SaleOrIssueOfTreasuryShares"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_VentaDeAccionesPropias" xlink:label="VentaDeAccionesPropias" xlink:title="VentaDeAccionesPropias"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="SaleOrIssueOfTreasuryShares" xlink:to="VentaDeAccionesPropias" xlink:title="definition: SaleOrIssueOfTreasuryShares to VentaDeAccionesPropias" order="1.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.amadeus.com/role/StatementConsolidatedStatementsOfChangesInEquity">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_StatementOfChangesInEquityAbstract" xlink:label="StatementOfChangesInEquityAbstract" xlink:title="StatementOfChangesInEquityAbstract"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_StatementOfChangesInEquityTable" xlink:label="StatementOfChangesInEquityTable" xlink:title="StatementOfChangesInEquityTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="StatementOfChangesInEquityAbstract" xlink:to="StatementOfChangesInEquityTable" xlink:title="definition: StatementOfChangesInEquityAbstract to StatementOfChangesInEquityTable" order="1.0" xbrldt:contextElement="scenario" xbrldt:closed="true"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComponentsOfEquityAxis" xlink:label="ComponentsOfEquityAxis" xlink:title="ComponentsOfEquityAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="StatementOfChangesInEquityTable" xlink:to="ComponentsOfEquityAxis" xlink:title="definition: StatementOfChangesInEquityTable to ComponentsOfEquityAxis" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_EquityMember" xlink:label="EquityMember" xlink:title="EquityMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ComponentsOfEquityAxis" xlink:to="EquityMember" xlink:title="definition: ComponentsOfEquityAxis to EquityMember" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_GananciaPerdidaAtribuibleALosPropietariosDeLaDominanteMember" xlink:label="GananciaPerdidaAtribuibleALosPropietariosDeLaDominanteMiembro" xlink:title="GananciaPerdidaAtribuibleALosPropietariosDeLaDominanteMiembro"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EquityMember" xlink:to="GananciaPerdidaAtribuibleALosPropietariosDeLaDominanteMiembro" xlink:title="definition: EquityMember to GananciaPerdidaAtribuibleALosPropietariosDeLaDominanteMiembro" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IssuedCapitalMember" xlink:label="IssuedCapitalMember" xlink:title="IssuedCapitalMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EquityMember" xlink:to="IssuedCapitalMember" xlink:title="definition: EquityMember to IssuedCapitalMember" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_SharePremiumMember" xlink:label="SharePremiumMember" xlink:title="SharePremiumMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EquityMember" xlink:to="SharePremiumMember" xlink:title="definition: EquityMember to SharePremiumMember" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_RetainedEarningsMember" xlink:label="RetainedEarningsMember" xlink:title="RetainedEarningsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EquityMember" xlink:to="RetainedEarningsMember" xlink:title="definition: EquityMember to RetainedEarningsMember" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_TreasurySharesMember" xlink:label="TreasurySharesMember" xlink:title="TreasurySharesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EquityMember" xlink:to="TreasurySharesMember" xlink:title="definition: EquityMember to TreasurySharesMember" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherReservesMember" xlink:label="OtherReservesMember" xlink:title="OtherReservesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EquityMember" xlink:to="OtherReservesMember" xlink:title="definition: EquityMember to OtherReservesMember" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncontrollingInterestsMember" xlink:label="NoncontrollingInterestsMember" xlink:title="NoncontrollingInterestsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EquityMember" xlink:to="NoncontrollingInterestsMember" xlink:title="definition: EquityMember to NoncontrollingInterestsMember" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_StatementOfChangesInEquityLineItems" xlink:label="StatementOfChangesInEquityLineItems" xlink:title="StatementOfChangesInEquityLineItems"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfChangesInEquityAbstract" xlink:to="StatementOfChangesInEquityLineItems" xlink:title="definition: StatementOfChangesInEquityAbstract to StatementOfChangesInEquityLineItems" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Equity" xlink:label="Equity" xlink:title="Equity"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfChangesInEquityLineItems" xlink:to="Equity" xlink:title="definition: StatementOfChangesInEquityLineItems to Equity" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComprehensiveIncome" xlink:label="ComprehensiveIncome" xlink:title="ComprehensiveIncome"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfChangesInEquityLineItems" xlink:to="ComprehensiveIncome" xlink:title="definition: StatementOfChangesInEquityLineItems to ComprehensiveIncome" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PurchaseOfTreasuryShares" xlink:label="PurchaseOfTreasuryShares" xlink:title="PurchaseOfTreasuryShares"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfChangesInEquityLineItems" xlink:to="PurchaseOfTreasuryShares" xlink:title="definition: StatementOfChangesInEquityLineItems to PurchaseOfTreasuryShares" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:label="IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:title="IncreaseDecreaseThroughSharebasedPaymentTransactions"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfChangesInEquityLineItems" xlink:to="IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:title="definition: StatementOfChangesInEquityLineItems to IncreaseDecreaseThroughSharebasedPaymentTransactions" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_OtrosCambiosEnElPatrimonio" xlink:label="OtrosCambiosEnPatrimonio" xlink:title="OtrosCambiosEnPatrimonio"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfChangesInEquityLineItems" xlink:to="OtrosCambiosEnPatrimonio" xlink:title="definition: StatementOfChangesInEquityLineItems to OtrosCambiosEnPatrimonio" order="14.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:label="IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:title="IncreaseDecreaseThroughTransfersAndOtherChangesEquity"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfChangesInEquityLineItems" xlink:to="IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:title="definition: StatementOfChangesInEquityLineItems to IncreaseDecreaseThroughTransfersAndOtherChangesEquity" order="13.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IssueOfEquity" xlink:label="IssueOfEquity" xlink:title="IssueOfEquity"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfChangesInEquityLineItems" xlink:to="IssueOfEquity" xlink:title="definition: StatementOfChangesInEquityLineItems to IssueOfEquity" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IssueOfConvertibleInstruments" xlink:label="IssueOfConvertibleInstruments" xlink:title="IssueOfConvertibleInstruments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfChangesInEquityLineItems" xlink:to="IssueOfConvertibleInstruments" xlink:title="definition: StatementOfChangesInEquityLineItems to IssueOfConvertibleInstruments" order="15.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_VentaDeAccionesPropias" xlink:label="VentaDeAccionesPropias" xlink:title="VentaDeAccionesPropias"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfChangesInEquityLineItems" xlink:to="VentaDeAccionesPropias" xlink:title="definition: StatementOfChangesInEquityLineItems to VentaDeAccionesPropias" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_RetiroDeParticipacionesNoDominantes" xlink:label="RetiroDeParticipacionesNoDominantes" xlink:title="RetiroDeParticpacionesNoDominantes"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfChangesInEquityLineItems" xlink:to="RetiroDeParticipacionesNoDominantes" xlink:title="definition: StatementOfChangesInEquityLineItems to RetiroDeParticipacionesNoDominantes" order="12.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.esma.europa.eu/xbrl/role/ext/BlockDefaultUseOfLineItemsScenario"/>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.esma.europa.eu/xbrl/role/ext/BlockDefaultUseOfLineItemsSegment"/>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.esma.europa.eu/xbrl/role/cor/esef_role-999999">
    <link:loc xlink:type="locator" xlink:href="http://www.esma.europa.eu/taxonomy/2020-03-16/esef_cor.xsd#esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:label="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:title="LineItemsNotDimensionallyQualifiedPlaceholder"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Goodwill" xlink:label="Goodwill" xlink:title="Goodwill"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="Goodwill" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to Goodwill" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRights" xlink:label="CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRights" xlink:title="CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRights"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRights" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRights" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComputerSoftware" xlink:label="ComputerSoftware" xlink:title="ComputerSoftware"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ComputerSoftware" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ComputerSoftware" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_RelacionesContractuales" xlink:label="RelacionesContractuales" xlink:title="RelacionesContractuales"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="RelacionesContractuales" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to RelacionesContractuales" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:label="IntangibleAssetsOtherThanGoodwill" xlink:title="IntangibleAssetsOtherThanGoodwill"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="IntangibleAssetsOtherThanGoodwill" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to IntangibleAssetsOtherThanGoodwill" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_LandAndBuildings" xlink:label="LandAndBuildings" xlink:title="LandAndBuildings"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="LandAndBuildings" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to LandAndBuildings" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_EquiposDeProcesoDeDatos" xlink:label="EquiposDeProcesoDeDatos" xlink:title="EquiposDeProcesoDeDatos"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="EquiposDeProcesoDeDatos" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to EquiposDeProcesoDeDatos" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherPropertyPlantAndEquipment" xlink:label="OtherPropertyPlantAndEquipment" xlink:title="OtherPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherPropertyPlantAndEquipment" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherPropertyPlantAndEquipment" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PropertyPlantAndEquipment" xlink:label="PropertyPlantAndEquipment" xlink:title="PropertyPlantAndEquipment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="PropertyPlantAndEquipment" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to PropertyPlantAndEquipment" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_RightofuseAssets" xlink:label="RightofuseAssets" xlink:title="RightofuseAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="RightofuseAssets" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to RightofuseAssets" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:label="InvestmentAccountedForUsingEquityMethod" xlink:title="InvestmentAccountedForUsingEquityMethod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="InvestmentAccountedForUsingEquityMethod" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to InvestmentAccountedForUsingEquityMethod" order="12.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherNoncurrentFinancialAssets" xlink:label="OtherNoncurrentFinancialAssets" xlink:title="OtherNoncurrentFinancialAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherNoncurrentFinancialAssets" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherNoncurrentFinancialAssets" order="13.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentDerivativeFinancialAssets" xlink:label="NoncurrentDerivativeFinancialAssets" xlink:title="NoncurrentDerivativeFinancialAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="NoncurrentDerivativeFinancialAssets" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to NoncurrentDerivativeFinancialAssets" order="14.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DeferredTaxAssets" xlink:label="DeferredTaxAssets" xlink:title="DeferredTaxAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="DeferredTaxAssets" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to DeferredTaxAssets" order="15.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherNoncurrentAssets" xlink:label="OtherNoncurrentAssets" xlink:title="OtherNoncurrentAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherNoncurrentAssets" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherNoncurrentAssets" order="16.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentAssets" xlink:label="NoncurrentAssets" xlink:title="NoncurrentAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="NoncurrentAssets" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to NoncurrentAssets" order="17.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_TradeReceivables" xlink:label="TradeReceivables" xlink:title="TradeReceivables"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="TradeReceivables" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to TradeReceivables" order="18.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentTaxAssets" xlink:label="CurrentTaxAssets" xlink:title="CurrentTaxAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CurrentTaxAssets" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CurrentTaxAssets" order="19.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherCurrentFinancialAssets" xlink:label="OtherCurrentFinancialAssets" xlink:title="OtherCurrentFinancialAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherCurrentFinancialAssets" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherCurrentFinancialAssets" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentDerivativeFinancialAssets" xlink:label="CurrentDerivativeFinancialAssets" xlink:title="CurrentDerivativeFinancialAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CurrentDerivativeFinancialAssets" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CurrentDerivativeFinancialAssets" order="21.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherCurrentAssets" xlink:label="OtherCurrentAssets" xlink:title="OtherCurrentAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherCurrentAssets" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherCurrentAssets" order="22.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashAndCashEquivalents" xlink:label="CashAndCashEquivalents" xlink:title="CashAndCashEquivalents"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CashAndCashEquivalents" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CashAndCashEquivalents" order="23.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentAssets" xlink:label="CurrentAssets" xlink:title="CurrentAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CurrentAssets" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CurrentAssets" order="24.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Assets" xlink:label="Assets" xlink:title="Assets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="Assets" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to Assets" order="25.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IssuedCapital" xlink:label="IssuedCapital" xlink:title="IssuedCapital"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="IssuedCapital" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to IssuedCapital" order="26.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_SharePremium" xlink:label="SharePremium" xlink:title="SharePremium"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="SharePremium" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to SharePremium" order="27.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_ReservasYResultadosAcumulados" xlink:label="ReservasResultadosAcumulados" xlink:title="ReservasResultadosAcumulados"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ReservasResultadosAcumulados" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ReservasResultadosAcumulados" order="28.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_TreasuryShares" xlink:label="TreasuryShares" xlink:title="TreasuryShares"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="TreasuryShares" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to TreasuryShares" order="29.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_EquityAttributableToOwnersOfParent" xlink:label="EquityAttributableToOwnersOfParent" xlink:title="EquityAttributableToOwnersOfParent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="EquityAttributableToOwnersOfParent" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to EquityAttributableToOwnersOfParent" order="32.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncontrollingInterests" xlink:label="NoncontrollingInterests" xlink:title="NoncontrollingInterests"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="NoncontrollingInterests" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to NoncontrollingInterests" order="33.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentProvisions" xlink:label="NoncurrentProvisions" xlink:title="NoncurrentProvisions"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="NoncurrentProvisions" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to NoncurrentProvisions" order="34.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentDebtInstrumentsIssued" xlink:label="NoncurrentDebtInstrumentsIssued" xlink:title="NoncurrentDebtInstrumentsIssued"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="NoncurrentDebtInstrumentsIssued" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to NoncurrentDebtInstrumentsIssued" order="35.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentDerivativeFinancialLiabilities" xlink:label="NoncurrentDerivativeFinancialLiabilities" xlink:title="NoncurrentDerivativeFinancialLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="NoncurrentDerivativeFinancialLiabilities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to NoncurrentDerivativeFinancialLiabilities" order="36.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherNoncurrentFinancialLiabilities" xlink:label="OtherNoncurrentFinancialLiabilities" xlink:title="OtherNoncurrentFinancialLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherNoncurrentFinancialLiabilities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherNoncurrentFinancialLiabilities" order="37.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DeferredTaxLiabilities" xlink:label="DeferredTaxLiabilities" xlink:title="DeferredTaxLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="DeferredTaxLiabilities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to DeferredTaxLiabilities" order="38.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentContractLiabilities" xlink:label="NoncurrentContractLiabilities" xlink:title="NoncurrentContractLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="NoncurrentContractLiabilities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to NoncurrentContractLiabilities" order="39.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentTaxLiabilitiesNoncurrent" xlink:label="CurrentTaxLiabilitiesNoncurrent" xlink:title="CurrentTaxLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CurrentTaxLiabilitiesNoncurrent" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CurrentTaxLiabilitiesNoncurrent" order="40.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherNoncurrentLiabilities" xlink:label="OtherNoncurrentLiabilities" xlink:title="OtherNoncurrentLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherNoncurrentLiabilities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherNoncurrentLiabilities" order="41.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentLiabilities" xlink:label="NoncurrentLiabilities" xlink:title="NoncurrentLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="NoncurrentLiabilities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to NoncurrentLiabilities" order="42.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentProvisions" xlink:label="CurrentProvisions" xlink:title="CurrentProvisions"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CurrentProvisions" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CurrentProvisions" order="43.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentDebtInstrumentsIssued" xlink:label="CurrentDebtInstrumentsIssued" xlink:title="CurrentDebtInstrumentsIssued"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CurrentDebtInstrumentsIssued" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CurrentDebtInstrumentsIssued" order="44.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherCurrentFinancialLiabilities" xlink:label="OtherCurrentFinancialLiabilities" xlink:title="OtherCurrentFinancialLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherCurrentFinancialLiabilities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherCurrentFinancialLiabilities" order="45.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentDividendPayables" xlink:label="CurrentDividendPayables" xlink:title="CurrentDividendPayables"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CurrentDividendPayables" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CurrentDividendPayables" order="46.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentDerivativeFinancialLiabilities" xlink:label="CurrentDerivativeFinancialLiabilities" xlink:title="CurrentDerivativeFinancialLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CurrentDerivativeFinancialLiabilities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CurrentDerivativeFinancialLiabilities" order="47.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_TradeAndOtherPayablesToTradeSuppliers" xlink:label="TradeAndOtherPayablesToTradeSuppliers" xlink:title="TradeAndOtherPayablesToTradeSuppliers"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="TradeAndOtherPayablesToTradeSuppliers" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to TradeAndOtherPayablesToTradeSuppliers" order="48.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:label="CurrentTaxLiabilitiesCurrent" xlink:title="CurrentTaxLiabilitiesCurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CurrentTaxLiabilitiesCurrent" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CurrentTaxLiabilitiesCurrent" order="49.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentContractLiabilities" xlink:label="CurrentContractLiabilities" xlink:title="CurrentContractLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CurrentContractLiabilities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CurrentContractLiabilities" order="50.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherCurrentLiabilities" xlink:label="OtherCurrentLiabilities" xlink:title="OtherCurrentLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherCurrentLiabilities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherCurrentLiabilities" order="51.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentLiabilities" xlink:label="CurrentLiabilities" xlink:title="CurrentLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CurrentLiabilities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CurrentLiabilities" order="52.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_EquityAndLiabilities" xlink:label="EquityAndLiabilities" xlink:title="EquityAndLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="EquityAndLiabilities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to EquityAndLiabilities" order="53.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Revenue" xlink:label="Revenue" xlink:title="Revenue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="Revenue" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to Revenue" order="54.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CostOfSales" xlink:label="CostOfSales" xlink:title="CostOfSales"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CostOfSales" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CostOfSales" order="55.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_EmployeeBenefitsExpense" xlink:label="EmployeeBenefitsExpense" xlink:title="EmployeeBenefitsExpense"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="EmployeeBenefitsExpense" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to EmployeeBenefitsExpense" order="56.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DepreciationAndAmortisationExpense" xlink:label="DepreciationAndAmortisationExpense" xlink:title="DepreciationAndAmortisationExpense"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="DepreciationAndAmortisationExpense" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to DepreciationAndAmortisationExpense" order="57.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_MiscellaneousOtherOperatingExpense" xlink:label="MiscellaneousOtherOperatingExpense" xlink:title="MiscellaneousOtherOperatingExpense"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="MiscellaneousOtherOperatingExpense" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to MiscellaneousOtherOperatingExpense" order="58.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLossFromOperatingActivities" xlink:label="ProfitLossFromOperatingActivities" xlink:title="ProfitLossFromOperatingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ProfitLossFromOperatingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ProfitLossFromOperatingActivities" order="59.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_FinanceIncome" xlink:label="FinanceIncome" xlink:title="FinanceIncome"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="FinanceIncome" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to FinanceIncome" order="60.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_InterestExpense" xlink:label="InterestExpense" xlink:title="InterestExpense"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="InterestExpense" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to InterestExpense" order="61.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherFinanceCost" xlink:label="OtherFinanceCost" xlink:title="OtherFinanceCost"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherFinanceCost" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherFinanceCost" order="62.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:label="GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:title="GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" order="63.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_GastoFinancieroNeto" xlink:label="GastoFinancieroNeto" xlink:title="GastoFinancieroNeto"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="GastoFinancieroNeto" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to GastoFinancieroNeto" order="64.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherGainsLosses" xlink:label="OtherGainsLosses" xlink:title="OtherGainsLosses"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherGainsLosses" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherGainsLosses" order="65.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLossBeforeTax" xlink:label="ProfitLossBeforeTax" xlink:title="ProfitLossBeforeTax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ProfitLossBeforeTax" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ProfitLossBeforeTax" order="66.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="IncomeTaxExpenseContinuingOperations" xlink:title="IncomeTaxExpenseContinuingOperations"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="IncomeTaxExpenseContinuingOperations" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to IncomeTaxExpenseContinuingOperations" order="67.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLossFromContinuingOperations" xlink:label="ProfitLossFromContinuingOperations" xlink:title="ProfitLossFromContinuingOperations"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ProfitLossFromContinuingOperations" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ProfitLossFromContinuingOperations" order="68.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:label="ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:title="ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" order="69.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLoss" xlink:label="ProfitLoss" xlink:title="ProfitLoss"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ProfitLoss" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ProfitLoss" order="70.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:label="ProfitLossAttributableToOwnersOfParent" xlink:title="ProfitLossAttributableToOwnersOfParent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ProfitLossAttributableToOwnersOfParent" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ProfitLossAttributableToOwnersOfParent" order="71.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xlink:label="ProfitLossAttributableToNoncontrollingInterests" xlink:title="ProfitLossAttributableToNoncontrollingInterests"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ProfitLossAttributableToNoncontrollingInterests" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ProfitLossAttributableToNoncontrollingInterests" order="72.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_BasicEarningsLossPerShare" xlink:label="BasicEarningsLossPerShare" xlink:title="BasicEarningsLossPerShare"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="BasicEarningsLossPerShare" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to BasicEarningsLossPerShare" order="73.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DilutedEarningsLossPerShare" xlink:label="DilutedEarningsLossPerShare" xlink:title="DilutedEarningsLossPerShare"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="DilutedEarningsLossPerShare" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to DilutedEarningsLossPerShare" order="74.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:label="OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:title="OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" order="75.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments" xlink:label="OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments" xlink:title="OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments" order="76.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_GainsLossesOnCashFlowHedgesNetOfTax" xlink:label="GainsLossesOnCashFlowHedgesNetOfTax" xlink:title="GainsLossesOnCashFlowHedgesNetOfTax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="GainsLossesOnCashFlowHedgesNetOfTax" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to GainsLossesOnCashFlowHedgesNetOfTax" order="77.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationNetOfTax" xlink:label="GainsLossesOnExchangeDifferencesOnTranslationNetOfTax" xlink:title="GainsLossesOnExchangeDifferencesOnTranslationNetOfTax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="GainsLossesOnExchangeDifferencesOnTranslationNetOfTax" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to GainsLossesOnExchangeDifferencesOnTranslationNetOfTax" order="78.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherComprehensiveIncome" xlink:label="OtherComprehensiveIncome" xlink:title="OtherComprehensiveIncome"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherComprehensiveIncome" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherComprehensiveIncome" order="79.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:label="ComprehensiveIncomeAttributableToOwnersOfParent" xlink:title="ComprehensiveIncomeAttributableToOwnersOfParent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ComprehensiveIncomeAttributableToOwnersOfParent" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ComprehensiveIncomeAttributableToOwnersOfParent" order="80.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:label="ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:title="ComprehensiveIncomeAttributableToNoncontrollingInterests"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ComprehensiveIncomeAttributableToNoncontrollingInterests" order="81.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_BeneficioDeLaExplotacionAntesDeCambiosEnElCapitalCirculanteYPagoDeImpuestos" xlink:label="BeneficioDeExplotacionAntesDeCambiosEnCapitalCirculanteYPagoDeImpuestos" xlink:title="BeneficioDeExplotaciónAntesDeCambiosEnCapitalCirculanteYPagoDeImpuestos"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="BeneficioDeExplotacionAntesDeCambiosEnCapitalCirculanteYPagoDeImpuestos" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to BeneficioDeExplotacionAntesDeCambiosEnCapitalCirculanteYPagoDeImpuestos" order="84.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" xlink:label="AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" xlink:title="AdjustmentsForDecreaseIncreaseInTradeAccountReceivable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" order="85.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInOtherCurrentAssets" xlink:label="AdjustmentsForDecreaseIncreaseInOtherCurrentAssets" xlink:title="AdjustmentsForDecreaseIncreaseInOtherCurrentAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="AdjustmentsForDecreaseIncreaseInOtherCurrentAssets" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to AdjustmentsForDecreaseIncreaseInOtherCurrentAssets" order="86.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable" xlink:label="AdjustmentsForIncreaseDecreaseInTradeAccountPayable" xlink:title="AdjustmentsForIncreaseDecreaseInTradeAccountPayable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="AdjustmentsForIncreaseDecreaseInTradeAccountPayable" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to AdjustmentsForIncreaseDecreaseInTradeAccountPayable" order="87.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities" xlink:label="AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities" xlink:title="AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities" order="88.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:label="AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:title="AdjustmentsForIncreaseDecreaseInOtherLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to AdjustmentsForIncreaseDecreaseInOtherLiabilities" order="89.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" xlink:label="IncomeTaxesPaidClassifiedAsOperatingActivities" xlink:title="IncomeTaxesPaidClassifiedAsOperatingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="IncomeTaxesPaidClassifiedAsOperatingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to IncomeTaxesPaidClassifiedAsOperatingActivities" order="90.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:label="CashFlowsFromUsedInOperatingActivities" xlink:title="CashFlowsFromUsedInOperatingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CashFlowsFromUsedInOperatingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CashFlowsFromUsedInOperatingActivities" order="91.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:label="PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:title="PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" order="92.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:label="PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:title="PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" order="93.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_InterestReceivedClassifiedAsInvestingActivities" xlink:label="InterestReceivedClassifiedAsInvestingActivities" xlink:title="InterestReceivedClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="InterestReceivedClassifiedAsInvestingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to InterestReceivedClassifiedAsInvestingActivities" order="95.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:label="PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:title="PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities" order="96.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities" xlink:label="CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities" xlink:title="CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CashPaymentsForFutureContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivities" order="99.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:label="ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:title="ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities" order="100.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DividendsReceivedClassifiedAsInvestingActivities" xlink:label="DividendsReceivedClassifiedAsInvestingActivities" xlink:title="DividendsReceivedClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="DividendsReceivedClassifiedAsInvestingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to DividendsReceivedClassifiedAsInvestingActivities" order="101.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:label="ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:title="ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" order="102.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:label="CashFlowsFromUsedInInvestingActivities" xlink:title="CashFlowsFromUsedInInvestingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CashFlowsFromUsedInInvestingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CashFlowsFromUsedInInvestingActivities" order="103.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PaymentsFromChangesInOwnershipInterestsInSubsidiaries" xlink:label="PaymentsFromChangesInOwnershipInterestsInSubsidiaries" xlink:title="PaymentsFromChangesInOwnershipInterestsInSubsidiaries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="PaymentsFromChangesInOwnershipInterestsInSubsidiaries" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to PaymentsFromChangesInOwnershipInterestsInSubsidiaries" order="104.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:label="ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:title="ProceedsFromBorrowingsClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ProceedsFromBorrowingsClassifiedAsFinancingActivities" order="105.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:label="RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:title="RepaymentsOfBorrowingsClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to RepaymentsOfBorrowingsClassifiedAsFinancingActivities" order="106.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:label="InterestPaidClassifiedAsFinancingActivities" xlink:title="InterestPaidClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="InterestPaidClassifiedAsFinancingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to InterestPaidClassifiedAsFinancingActivities" order="107.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DividendsPaidClassifiedAsFinancingActivities" xlink:label="DividendsPaidClassifiedAsFinancingActivities" xlink:title="DividendsPaidClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="DividendsPaidClassifiedAsFinancingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to DividendsPaidClassifiedAsFinancingActivities" order="108.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:label="PaymentsToAcquireOrRedeemEntitysShares" xlink:title="PaymentsToAcquireOrRedeemEntitysShares"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="PaymentsToAcquireOrRedeemEntitysShares" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to PaymentsToAcquireOrRedeemEntitysShares" order="109.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:label="PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:title="PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" order="110.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:label="CashFlowsFromUsedInFinancingActivities" xlink:title="CashFlowsFromUsedInFinancingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CashFlowsFromUsedInFinancingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CashFlowsFromUsedInFinancingActivities" order="111.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:label="EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:title="EffectOfExchangeRateChangesOnCashAndCashEquivalents"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to EffectOfExchangeRateChangesOnCashAndCashEquivalents" order="112.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:label="IncreaseDecreaseInCashAndCashEquivalents" xlink:title="IncreaseDecreaseInCashAndCashEquivalents"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="IncreaseDecreaseInCashAndCashEquivalents" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to IncreaseDecreaseInCashAndCashEquivalents" order="113.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_EfectivoYEquivalentesAlEfectivoNeto" xlink:label="EfectivoYEquivalentesAlEfectivoNeto" xlink:title="CashAndCashEquivalentsNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="EfectivoYEquivalentesAlEfectivoNeto" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to EfectivoYEquivalentesAlEfectivoNeto" order="114.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification" xlink:label="NameOfReportingEntityOrOtherMeansOfIdentification" xlink:title="NameOfReportingEntityOrOtherMeansOfIdentification"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="NameOfReportingEntityOrOtherMeansOfIdentification" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to NameOfReportingEntityOrOtherMeansOfIdentification" order="115.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_LegalFormOfEntity" xlink:label="LegalFormOfEntity" xlink:title="LegalFormOfEntity"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="LegalFormOfEntity" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to LegalFormOfEntity" order="116.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NameOfUltimateParentOfGroup" xlink:label="NameOfUltimateParentOfGroup" xlink:title="NameOfUltimateParentOfGroup"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="NameOfUltimateParentOfGroup" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to NameOfUltimateParentOfGroup" order="117.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CountryOfIncorporation" xlink:label="CountryOfIncorporation" xlink:title="CountryOfIncorporation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="CountryOfIncorporation" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to CountryOfIncorporation" order="118.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AddressOfRegisteredOfficeOfEntity" xlink:label="AddressOfRegisteredOfficeOfEntity" xlink:title="AddressOfRegisteredOfficeOfEntity"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="AddressOfRegisteredOfficeOfEntity" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to AddressOfRegisteredOfficeOfEntity" order="119.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities" xlink:label="DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities" xlink:title="DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities" order="120.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Equity" xlink:label="Equity" xlink:title="Equity"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="Equity" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to Equity" order="121.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComprehensiveIncome" xlink:label="ComprehensiveIncome" xlink:title="ComprehensiveIncome"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ComprehensiveIncome" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ComprehensiveIncome" order="122.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PurchaseOfTreasuryShares" xlink:label="PurchaseOfTreasuryShares" xlink:title="PurchaseOfTreasuryShares"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="PurchaseOfTreasuryShares" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to PurchaseOfTreasuryShares" order="126.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:label="IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:title="IncreaseDecreaseThroughSharebasedPaymentTransactions"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to IncreaseDecreaseThroughSharebasedPaymentTransactions" order="128.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_OtrosCambiosEnElPatrimonio" xlink:label="OtrosCambiosEnPatrimonio" xlink:title="OtrosCambiosEnPatrimonio"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtrosCambiosEnPatrimonio" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtrosCambiosEnPatrimonio" order="132.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_PasivosRelacionadosConActivosMantenidosParaLaVenta" xlink:label="PasivosRelacionadosConActivosMantenidosParaLaVenta" xlink:title="PasivosRelacionadosConActivosMantenidosParaLaVenta"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="PasivosRelacionadosConActivosMantenidosParaLaVenta" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to PasivosRelacionadosConActivosMantenidosParaLaVenta" order="133.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IssueOfEquity" xlink:label="IssueOfEquity" xlink:title="IssueOfEquity"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="IssueOfEquity" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to IssueOfEquity" order="134.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IssueOfConvertibleInstruments" xlink:label="IssueOfConvertibleInstruments" xlink:title="IssueOfConvertibleInstruments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="IssueOfConvertibleInstruments" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to IssueOfConvertibleInstruments" order="135.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" xlink:label="OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" xlink:title="OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" order="136.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_TesoreriaObtenidaDeContratosDeDerivados" xlink:label="TesoreriaObtenidaDeContratosDeDerivados" xlink:title="TesoreriaObtenidaDeContratosDeDerivados"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="TesoreriaObtenidaDeContratosDeDerivados" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to TesoreriaObtenidaDeContratosDeDerivados" order="137.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProceedsFromIssuingShares" xlink:label="ProceedsFromIssuingShares" xlink:title="ProceedsFromIssuingShares"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ProceedsFromIssuingShares" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ProceedsFromIssuingShares" order="138.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PaymentsForShareIssueCosts" xlink:label="PaymentsForShareIssueCosts" xlink:title="PaymentsForShareIssueCosts"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="PaymentsForShareIssueCosts" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to PaymentsForShareIssueCosts" order="139.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProceedsFromSaleOrIssueOfTreasuryShares" xlink:label="ProceedsFromSaleOrIssueOfTreasuryShares" xlink:title="ProceedsFromSaleOrIssueOfTreasuryShares"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ProceedsFromSaleOrIssueOfTreasuryShares" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ProceedsFromSaleOrIssueOfTreasuryShares" order="140.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_InversionesRealizadasParaActividadesDeGestionDeCaja" xlink:label="InversionesRealizadasParaActividadesDeGestionDeCaja" xlink:title="InversionesRealizadasParaActividadesDeGestionDeCaja"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="InversionesRealizadasParaActividadesDeGestionDeCaja" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to InversionesRealizadasParaActividadesDeGestionDeCaja" order="141.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_ActivosMantenidosParaLaVenta" xlink:label="ActivosMantenidosParaLaVenta" xlink:title="ActivosMantenidosParaLaVenta"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ActivosMantenidosParaLaVenta" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ActivosMantenidosParaLaVenta" order="142.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_LiquidezTotalDisponible" xlink:label="LiquidezTotalDisponible" xlink:title="LiquidezTotalDisponible"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="LiquidezTotalDisponible" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to LiquidezTotalDisponible" order="143.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_TesoreriaNetaAplicadaEnActividadesDeInversionYGestionDeCaja" xlink:label="TesoreriaNetaAplicadaEnActividadesDeInversionYGestionDeCaja" xlink:title="TesoreriaNetaAplicadaEnActividadesDeInversionYGestionDeCaja"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="TesoreriaNetaAplicadaEnActividadesDeInversionYGestionDeCaja" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to TesoreriaNetaAplicadaEnActividadesDeInversionYGestionDeCaja" order="144.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DomicileOfEntity" xlink:label="DomicileOfEntity" xlink:title="DomicileOfEntity"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="DomicileOfEntity" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to DomicileOfEntity" order="145.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NameOfParentEntity" xlink:label="NameOfParentEntity" xlink:title="NameOfParentEntity"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="NameOfParentEntity" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to NameOfParentEntity" order="146.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_PrestamosATerceros" xlink:label="PrestamosATerceros" xlink:title="PrestamosATerceros"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="PrestamosATerceros" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to PrestamosATerceros" order="147.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_GananciasPerdidasAcumuladasNoRealizadas" xlink:label="GananciasPerdidasAcumuladasNoRealizadas" xlink:title="GananciasPerdidasAcumuladasNoRealizadas"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="GananciasPerdidasAcumuladasNoRealizadas" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to GananciasPerdidasAcumuladasNoRealizadas" order="148.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_DepreciacionYAmortizacion" xlink:label="DepreciacionYAmortizacion" xlink:title="DepreciacionYAmortizacion"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="DepreciacionYAmortizacion" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to DepreciacionYAmortizacion" order="149.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_VentaDeAccionesPropias" xlink:label="VentaDeAccionesPropias" xlink:title="VentaDeAccionesPropias"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="VentaDeAccionesPropias" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to VentaDeAccionesPropias" order="150.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_RetiroDeParticipacionesNoDominantes" xlink:label="RetiroDeParticpacionesNoDominantes" xlink:title="RetiroDeParticpacionesNoDominantes"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="RetiroDeParticpacionesNoDominantes" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to RetiroDeParticpacionesNoDominantes" order="152.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" xlink:label="OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" xlink:title="OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities" order="153.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_LineaDeCreditoNoDispuesta" xlink:label="LineaDeCreditoNoDispuesta" xlink:title="LineaDeCreditoNoDispuesta"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="LineaDeCreditoNoDispuesta" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to LineaDeCreditoNoDispuesta" order="154.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_PagosDeAcuerdosDeConfirming" xlink:label="PagosDeAcuerdosDeConfirming" xlink:title="PagosDeAcuerdosDeConfirming"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="PagosDeAcuerdosDeConfirming" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to PagosDeAcuerdosDeConfirming" order="155.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_GananciaPerdidaAtribuibleALosPropietariosDeLaDominante" xlink:label="GananciaPerdidaAtribuibleAPropietariosDeLaDominante" xlink:title="GananciaPerdidaAtribuibleAPropietariosDeLaDominante"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="GananciaPerdidaAtribuibleAPropietariosDeLaDominante" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to GananciaPerdidaAtribuibleAPropietariosDeLaDominante" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PrincipalPlaceOfBusiness" xlink:label="PrincipalPlaceOfBusiness" xlink:title="PrincipalPlaceOfBusiness"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="PrincipalPlaceOfBusiness" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to PrincipalPlaceOfBusiness" order="156.0"/>
    <link:loc xlink:type="locator" xlink:href="ams-2021-12-31.xsd#ams_InversionNetaEnSociedadesDependientesYEmpresasAsociadas" xlink:label="InversionNetaEnSociedadesDependientesYEmpresasAsociadas" xlink:title="InversionNetaEnSociedadesDependientesYEmpresasAsociadas"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="InversionNetaEnSociedadesDependientesYEmpresasAsociadas" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to InversionNetaEnSociedadesDependientesYEmpresasAsociadas" order="157.0"/>
    <link:loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ExplanationOfChangeInNameOfReportingEntityOrOtherMeansOfIdentificationFromEndOfPrecedingReportingPeriod" xlink:label="ExplanationOfChangeInNameOfReportingEntityOrOtherMeansOfIdentificationFromEndOfPrecedingReportingPeriod" xlink:title="ExplanationOfChangeInNameOfReportingEntityOrOtherMeansOfIdentificationFromEndOfPrecedingReportingPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="ExplanationOfChangeInNameOfReportingEntityOrOtherMeansOfIdentificationFromEndOfPrecedingReportingPeriod" xlink:title="definition: LineItemsNotDimensionallyQualifiedPlaceholder to ExplanationOfChangeInNameOfReportingEntityOrOtherMeansOfIdentificationFromEndOfPrecedingReportingPeriod" order="158.0"/>
  </link:definitionLink>
</link:linkbase>
