I. (ˈ)ā|zōik, əˈz- adjective
Etymology: a- (II) + -zoic
: without life ; specifically : of or relating to the part of geologic time that antedates life — compare archean
II. (ˈ)a|zōik also (ˈ)ā|-, ə|- adjective
Etymology: International Scientific Vocabulary az- + -ic; probably originally formed as French azoique
: azo — now usually restricted to insoluble dyes formed on the fiber