extinctadjective/ɐjʃˈtĩtu/mediumex·tin·toPortuguesEnglishEspanolFrancaisDefinitionThat has ceased to exist; that has been extinguished or eliminated.The dodo is a bird that has been extinct since the 17th century.The firefighters confirmed the fire was extinguished.synextinctvanishedgoneantexistingaliveactiveCommon collocationsextinct speciesextinct volcanoEtymologyDo latim 'extinctus', particípio passado de 'extinguere' (apagar).Related wordsextinçãoextinguirextintor