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Meaning of ARCHEAN ERA

WordNet Dictionary
 
 Definition: [n]  the time prior to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life
 
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 Synonyms: Archaeozoic, Archaeozoic era, Archean, Archeozoic, Archeozoic era
 
 See Also: era, geological era, Precambrian, Precambrian period

 

 

 

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