archeozoic
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(satellite adjective) (geology) formed in the earlier of two divisions of the Precambrian era; "archeozoic life forms" |
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Synonyms: archaeozoic |
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| 2. |
(noun) the time from 1.5 billion to 5 billion years ago; earth's crust formed; unicellular organisms are earliest forms of life |
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Synonyms: Archaeozoic, Archaeozoic era, Archeozoic era |
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Related Words: era |
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