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archaeozoic |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Archaeozoic \Ar`ch[ae]*o*zo"ic\, a. [Gr. 'archai^os ancient + zw^,on animal.] (Zo["o]l.) Like or belonging to the earliest forms of animal life. From WordNet r 1.6 [wn]: archaeozoic adj : (geology) formed in the earlier of two divisions of the Precambrian era; "archeozoic life forms" [syn: {archeozoic}] n : the time from 1.5 billion to 5 billion years ago; earth's crust formed; unicellular organisms are earliest forms of life [syn: {Archeozoic}, {Archaeozoic}, {Archeozoic era}, {Archaeozoic era}]
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