What is the definition of Archean era? | Dictionary.net

ARCHEAN ERA

\ˈɑːki͡ən ˈi͡əɹə], \ˈɑːki‍ən ˈi‍əɹə], \ˈɑː_k_iə_n ˈiə_ɹ_ə]\

Definitions of ARCHEAN ERA

2011 - English Dictionary Database

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the time prior to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life

2011 - English Dictionary Database
By DataStellar Co., Ltd

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