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Archeozoic n. 始生代 始生代 archeozoic adj 1: of or belonging to earlier of two divisions of the Precambrian era; "archeozoic life forms" [synonym: {archeozoic}, {archaeozoic}] n 1: the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life [synonym: {Archean}, {Archean eon}, {Archean aeon}, {Archeozoic}, {Archaeozoic}, {Archeozoic eon}, {Archaeozoic aeon}] archeozoic \archeozoic\ adj.
1. 1 (Geol.) same as {archaeozoic}. Syn: archaeozoic [WordNet 1.5] Archeozoic \Archeozoic\ n. 1. 1 the time from 1.5 billion to 5 billion years ago, when the earth's crust was formed; the time when only unicellular organisms and the earliest forms of life are present. Same as {Archaeozoic}. Syn: Archaeozoic, Archeozoic era, Archaeozoic era [WordNet 1.5]
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