Word Study
eozoic
CIDE DICTIONARY
eozoic, a. [See Eozoön.].
Of or pertaining to rocks or strata older than the Paleozoic, in many of which the eozoön has been found. [1913 Webster]
" This term has been proposed for the strata formerly called Azoic, and is preferred especially by those geologists who regard the eozoön as of organic origin. See Archæan ." [1913 Webster]
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