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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 Ar·cheo·zo·ic /ˌɑrkiəˈzoɪk/

From: WordNet (r) 2.0

      adj : formed in the earlier of two divisions of the Precambrian
            era; "archeozoic life forms" [syn: archaeozoic]
      n : the time from 3,800 million years to 2,500 million years
          ago; earth's crust formed; unicellular organisms are
          earliest forms of life [syn: Archean, Archean eon, Archean
          aeon, Archaeozoic, Archeozoic eon, Archaeozoic aeon]