extinction
extinction
noun
[mass noun]
noun
[mass noun]
- the state or process of a species, family, or larger group being or becoming extinct
（种、科或更大群体的）灭绝，绝种
the extinction of the great auk.
大海鸦的灭绝。
[count noun]mass extinctions.
大量消亡。
■the state or process of ceasing or causing something to cease to exist
（使）消亡
the extinction of the state.
国家的消亡。
■the wiping out of a debt
（债务的）偿清 - (Physics)reduction in the intensity of light or other radiation as it passes through a medium or object, due to absorption, reflection, and scattering
(物理)消光
ultraviolet extinction.
紫外线消光。
- late Middle English: from Latin exstinctio(n-), from exstinguere 'quench' (see extinguish)
考试词汇表
