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Archeozoic
DEFINITIONS OF:
Archeozoic
1
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
Synonyms:
Archaeozoic
,
Archaeozoic aeon
,
Archean
,
Archean aeon
,
Archean eon
,
Archeozoic eon
Example of:
aeon
,
eon
the longest division of geological time
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