A*zo"ic (?), a. [Gr. 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.
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 Archaean, and Eozoic.
© Webster 1913.