Search Result for "azoic": 
Wordnet 3.0

ADJECTIVE (1)

1. before the appearance of life;
- Example: "azoic rocks contain not organic remains"


The Collaborative International Dictionary of English v.0.48:

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]
WordNet (r) 3.0 (2006):

azoic adj 1: before the appearance of life; "azoic rocks contain not organic remains"