AZOIC

azoic

(adjective) before the appearance of life; “azoic rocks contain not organic remains”

Source: WordNet® 3.1

Etymology

Adjective

azoic (not comparable)

(dated) Destitute of any vestige of organic life, or at least of animal life

(dated) Anterior to the existence of animal life

(dated) Formed when there was no animal life on the globe

Adjective

Azoic (not comparable)

Alternative form of azoic

Source: Wiktionary

A*zo"ic, a. Etym: [Gr.

Definition: 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. 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 Archæan, and Eozoic.

Source: Webster’s Unabridged Dictionary 1913 Edition