extinct

形容词 extinct:

1. no longer in existence; lost or especially having died out leaving no living representatives
   同义词：nonextant
2. (of e.g. volcanos) permanently inactive
3. being out or having grown cold
   同义词：out

1. A genus of extinct, large, flightless birds native to Madagascar.
   象鸟，隆鸟一种不会飞的巨鸟，产于马达加斯加岛，现已绝种
2. An extinct volcano.
   一座死火山
3. Dinosaurs have been extinct for millions of years.
   恐龙已绝种几百万年了。

ex.tinct

adj.Abbr. ext.（形容词）缩写 ext.
No longer existing or living:
灭绝的：不再存在的或不再活的：
例句：
an extinct species.
一个灭绝的种

No longer burning or active:
熄灭的：不再燃烧的，不再活跃的：
例句：
an extinct volcano.
一座死火山

No longer in use:
废除了的：
例句：
an extinct custom.See Synonyms at dead
废除了的习俗参见 dead

Law Lacking a claimant; void:
【法律】 过时的；失效的：
例句：
an extinct title.
一个失效的头衔

来源：
Middle English
中古英语
from Latin exstonctus [past participle of] exstinguere [to extinguish] * see extinguish
源自 拉丁语 exstonctus [] exstinguere的过去分词 [灭绝] *参见 extinguish