ARCHAEANS
Noun
archaeans
plural of archaean
Source: Wiktionary
ARCHAEAN
Ar*chæ"an, a. Etym: [Gr.
Definition: Ancient; pertaining to the earliest period in geological history.
Ar*chæ"an, n. (Geol.)
Definition: 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.
Note: This is equivalent to the formerly accepted term Azoic, and to the Eozoic of Dawson.
Source: Webster’s Unabridged Dictionary 1913 Edition
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