extinction的意思

基本释义

• n 灭绝；消亡

  when a particular type of animal or plant stops existing

例句

1. species in danger of extinction

   有灭绝危险的物种

2. They were hunted almost to extinction.

   它们遭受猎杀，几近灭绝。

3. Conservationists are trying to save the whale from extinction.

   生态环境保护工作者正努力挽救鲸类以防止其灭绝。

短语

• extinction ratio 消光比；消减比率
• extinction coefficient 消光系数
• mass extinction 大量消亡
• fire extinction 灭火
• arc extinction 消弧，灭弧

近义词

英英释义

noun 1. the act of extinguishing causing to stop burning e.g. the extinction of the lights Synonym: extinguishingquenching 2. a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus Synonym: experimental extinction 3. complete annihilation e.g. they think a meteor cause the extinction of the dinosaurs Synonym: extermination 4. the reduction of the intensity of radiation as a consequence of absorption and radiation 5. no longer in existence e.g. the extinction of a species Synonym: defunctness 6. no longer active extinguished e.g. the extinction of the volcano

同根词