Definition of extinct in English:


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  • 1(of a species, family, or other group of animals or plants) having no living members; no longer in existence.

    ‘trilobites and dinosaurs are extinct’
    • ‘the red wolf became extinct in the wild in 1980’
    • ‘we might one day resurrect extinct species’
    vanished, lost, died out, dead, defunct, no longer existing, no longer extant, wiped out, destroyed, exterminated, gone
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    1. 1.1No longer in existence.
      ‘an extinct language’
      • ‘the sort of girls' school that is now extinct’
    2. 1.2(of a title of nobility) having no valid claimant.
      • ‘the baronetcy became extinct’
  • 2(of a volcano) not having erupted in recorded history.

    • ‘the islands are the remains of extinct volcanoes’
    inactive, old, former, no longer active
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    1. 2.1No longer alight.
      • ‘his now extinct pipe’



/ikˈstiNG(k)t/ /ɪkˈstɪŋ(k)t/


Late Middle English (in the sense ‘no longer alight’): from Latin exstinct- ‘extinguished’, from the verb exstinguere (see extinguish).