<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<!--
  This file is part of the Dutch Taxonomy (Nederlandse Taxonomie; NT)
  Intellectual Property of the State of the Netherlands
  Architecture: NT20
  Version: 20251210
  Release date: October 31, 2025
-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink">
  <link:roleRef roleURI="urn:bzk:linkrole:remuneration-of-supervisory-senior-officials" xlink:href="../dictionary/bzk-wnt-linkroles.xsd#bzk-wnt-lr_RemunerationOfSupervisorySeniorOfficials" xlink:type="simple"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" xlink:type="simple"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" xlink:type="simple"/>
  <link:definitionLink xlink:role="urn:bzk:linkrole:remuneration-of-supervisory-senior-officials" xlink:type="extended">
    <link:definitionArc order="2" xbrldt:closed="true" xbrldt:contextElement="scenario" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="sbr-dim_ValidationLineItems_loc" xlink:to="sbr-dim_ValidationTable_loc" xlink:type="arc"/>
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="sbr-dim_ValidationTable_loc" xlink:to="bzk-wnt-dim_NameOfSupervisorySeniorOfficialWithoutEmploymentAxis_loc" xlink:type="arc"/>
    <link:loc xlink:href="../dictionary/bzk-wnt-axes.xsd#bzk-wnt-dim_NameOfSupervisorySeniorOfficialWithoutEmploymentAxis" xlink:label="bzk-wnt-dim_NameOfSupervisorySeniorOfficialWithoutEmploymentAxis_loc" xlink:type="locator"/>
    <link:loc xlink:href="http://www.nltaxonomie.nl/2013/xbrl/sbr-dimensional-concepts.xsd#sbr-dim_ValidationLineItems" xlink:label="sbr-dim_ValidationLineItems_loc" xlink:type="locator"/>
    <link:loc xlink:href="http://www.nltaxonomie.nl/2013/xbrl/sbr-dimensional-concepts.xsd#sbr-dim_ValidationTable" xlink:label="sbr-dim_ValidationTable_loc" xlink:type="locator"/>
  </link:definitionLink>
</link:linkbase>
