azoicadj.
英 eɪ'zəʊɪk | 美 e'zoɪk
中文adj. 无生命时代的；无生命的\nn. 无生代；无生代岩石
无生命时代的；无生命的
n. 无生代；无生代岩石
词根词源
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).
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