ARCHAEAN
\ɑːkˈi͡ən], \ɑːkˈiən], \ɑː_k_ˈiə_n]\
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By DataStellar Co., Ltd
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Ancient; pertaining to the earliest period in geological history.
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The earliest period in geological period, extending up to the Lower Silurian. It includes an Azoic age, previous to the appearance of life, and an Eozoic age, including the earliest forms of life.
By Oddity Software
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Ancient; pertaining to the earliest period in geological history.
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The earliest period in geological period, extending up to the Lower Silurian. It includes an Azoic age, previous to the appearance of life, and an Eozoic age, including the earliest forms of life.
By Noah Webster.
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[Greek] Appl. geological era before Palaeozoic; Pre-Cambrian.
By J.H. Kenneth
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