azoic
adjective
- adjective (dated) Destitute of any vestige of organic life, or at least of animal life.
- adjective (dated) Before the existence of animal life.
- adjective Relating to azo dyes.
Etymology
From a- + -zoic.
Webster’s 1913
- adjective 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.
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “azoic”, CC BY-SA 4.0. Details