extinction /ɪkˈstɪŋkʃən/ noun plural extinctions
plural extinctions
Learner's definition of EXTINCTION
: the state or situation that results when something (such as a plant or animal species) has died out completely（植物、动物等的）灭绝，绝种，消亡 [noncount]
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the extinction of all life in the region这一地区所有生命的灭绝
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Several bird species are threatened with extinction. = Several bird species are on the brink of extinction.几种鸟类濒临灭绝。
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the extinction of many old traditions很多旧传统的消亡
[count]