extinction
n[U]
1 action of making extinct; state of being extinct 灭绝; 绝种
We may live to see the extinction of the whale. 人类或许能亲眼见到鲸的灭绝.
a tribe threatened by/with extinction 受到绝种威胁的部落.
2 (fml 文) act of extinguishing 熄灭
the extinction of a fire, a political movement, youthful hopes 火的熄灭、 政治运动的平息、 青年人希望的幻灭.