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archaeozoic
has definitions from the field of geology
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[ adjective ] (geology) formed in the earlier of two divisions of the Precambrian era
Synonyms Examples "archeozoic life forms" |
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[ noun ] (geology) the time prior to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life
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[ noun ] (geology) 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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