| 单词 | Archeozoic |
| 释义 | Archeozoic /ahr'kee euh zoh"ik/, 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 geologic time. n. 2. the Archeozoic division of geologic time or the rock systems formed then. Also, Archaeozoic. [1870-75; ARCHEO- + Gk zo(é) life + -IC] |
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