Azoic age
Azoic A*zo"ic, a. [Gr. 'a priv. + ? life, from ? to live.] Destitute of any vestige of organic life, or at least of animal life; anterior to the existence of animal life; formed when there was no animal life on the globe; as, the azoic. rocks. [1913 Webster]

{Azoic age} (Geol.), the age preceding the existence of animal life, or anterior to the paleozoic tome. Azoic is also used as a noun, age being understood. See {Arch[ae]an}, and {Eozoic}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Azoic — A*zo ic, a. [Gr. a priv. + ? life, from ? to live.] Destitute of any vestige of organic life, or at least of animal life; anterior to the existence of animal life; formed when there was no animal life on the globe; as, the azoic. rocks. [1913… …   The Collaborative International Dictionary of English

  • azoic — adj. 1 having no trace of life. 2 Geol. (of an age etc.) having left no organic remains. Etymology: Gk azoos without life …   Useful english dictionary

  • Archaean — Ar*ch[ae] an, n. (Geol.) 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. [1913 Webster] Note:… …   The Collaborative International Dictionary of English

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