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archean
archean - Dictionary definition and meaning for word
archean
Definition
(noun) 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 aeon
,
archean eon
,
archeozoic
,
archeozoic eon
Definition
(adj) of or relating to the earliest known rocks formed during the Precambrian Eon
Synonyms
:
archaean
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Books We Recommend!
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5 Great English Vocabulary Books we Recommend!
Oxford Picture Dictionary
Word Power Made Easy
McGraw-Hill Education Essential ESL Dictionary
504 Absolutely Essential Words 6th Edition
English Vocabulary in Use Advanced with CD-ROM: Vocabulary Reference and Practice 2nd Edition
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