azoic是什么意思
- 英式英标[e\'zoɪk]
- 美式音标[eɪ\'zəʊɪk]
adj. 无生命时代的；无生命的
n. 无生代；无生代岩石
英文词源
- azoic (adj.)
- "pertaining to the period of Earth's history before life appeared," 1854, with -ic + Greek azoos, from a- "not, without" (see a- (3)) + zoon "animal," here used in the sense "life" (see zoo).
实用例句
- 1. Marine life was discovered at depths previously thought to be azoic.
- 在先前被认为没有任何生命迹象的海洋深处发现了海洋生物。
来自《权威词典》
- 2. Azoic rocks don't contain organic remains.
- 无生代岩石中不包含有机残余物.
来自互联网
