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Eozoic

[ ee-uh-zoh-ik ]
/ ˌi əˈzoʊ ɪk /
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adjective Geology.

(formerly) noting or pertaining to the Precambrian Era, especially the period including the beginnings of animal life.

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Origin of Eozoic

First recorded in 1875–80; eo- + zo- + -ic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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British Dictionary definitions for Eozoic

Eozoic
/ (ˌiːəʊˈzəʊɪk) /

adjective

archaic of or formed in the part of the Precambrian era, during which life first appeared
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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