形容词

1. 灭绝的;绝种的
A species of animal or plant that is extinct no longer has any living members, either in the world or in a particular place.

2. （某类劳动者、生活方式或活动）不复存在的，废除了的
If a particular kind of worker, way of life, or type of activity is extinct, it no longer exists, because of changes in society.

3. （火山）死的
An extinct volcano is one that does not erupt or is not expected to erupt any more.

1. (of e.g. volcanos) permanently inactive

e.g. an extinct volcano

2. being out or having grown cold

e.g. threw his extinct cigarette into the stream
the fire is out

Synonym: out(p)

3. no longer in existence
lost or especially having died out leaving no living representatives

e.g. an extinct species of fish
an extinct royal family
extinct laws and customs

Synonym: nonextant