Meaning of Archeozoic

Ar•che•o•zo•ic

Pronunciation: (är"kē-u-zō'ik), [key]
— Geol. Geol.
—adj.
  1. noting or pertaining to the earlier half of the Precambrian Era, from about 5 billion to 2.5 billion years ago, during which the earliest datable rocks were formed and from which the oldest known fossil forms, blue-green algae and bacteria, have been recovered. See table under
—n.
  1. the Archeozoic division of geologic time or the rock systems formed then.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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