simple past tense and past participle of extinct

(dated) Extinguished, no longer alight (of fire, candles etc.) / No longer used; obsolete, discontinued. / (of a group of organisms, as a species) No longer in existence; having died out.

(transitive) To make extinct; to extinguish or annihilate.

plural of extinction

The action of making or becoming extinct; annihilation.

present participle of extinct

Third-person singular simple present indicative form of extinct

The quality of being extinct; extinction.

In an extinctive manner.

Tending or serving to extinguish, or make extinct.