Extinct /(?)/

Ex·tinct

Extinct

a.
  1. Extinguished; put out; quenched; as, a fire, a light, or a lamp, is extinct; an extinct volcano.
    Light, the prime work of God, to me is extinct.
  2. Without a survivor; without force; dead; as, a family becomes extinct; an extinct feud or law.
  3. Once existing as a species but now having no living members; -- used of species of living organisms, especially of animals and plants; as, dinosaurs are now extinct; the dodo bird is extinct.

Extinct

v. t.
  1. To cause to be extinct. [Obs.]