1. （物種的）滅絕 The extinction of a species of animal or plant is the death of all its remaining living members.
e.g. An operation is beginning to try to save a species of crocodile from extinction... 一項努力拯救一個(gè)鱷魚(yú)物種、使其免于滅絕的行動(dòng)已經(jīng)開(kāi)始。 e.g. Many species have been shot to the verge of extinction. 很多物種已經(jīng)被獵殺到滅絕的邊緣。
2. 消亡;消滅;不復存在 If someone refers to the extinction of a way of life or type of activity, they mean that the way of life or activity stops existing.
e.g. The loggers say their jobs are faced with extinction because of declining timber sales. 伐木工人說(shuō)由于木材銷(xiāo)量下降，他們的工作恐不復存在。
extinction英英釋義
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