mass extinction
noun
The killing of a great number at once; (Biology ) an episode of extinction involving numerous species or higher taxa.
Origin
1940s; earliest use found in American Sociological Review.
| 单词 | mass extinction |
| 释义 | mass extinctionnoun The killing of a great number at once; (Biology ) an episode of extinction involving numerous species or higher taxa. Origin |
| 随便看 |
英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。