adjective
extinct
ik-STINGKT/ɪkˈstɪŋkt/
No longer in existence.
The dodo on display belongs to a species that is extinct.

Etymology
The image of a fire quenched or put out extended to families and titles that had died out. Applied to a species, it means that no living members remain.
In context
There are 360 living and recently extinct species of turtles
More examples
- Many species become extinct when their habitats disappear.
- That ancient language is now extinct.
- Scientists classify the volcano as extinct.
Forms
extinct
extinction noun — The state of no longer existing.