plural of zoon.



noun, plural zo·a [zoh-uh] /ˈzoʊ ə/. Biology Rare.

any of the individuals of a compound organism.
any individual, or the individuals collectively, produced from a single egg.

Origin of zoon

1860–65; < New Latin zōon < Greek zôion animal
Related formszo·on·al [zoh-uh-nl] /ˈzoʊ ə nl/, adjective


a combining form meaning “animals,” “organisms” of the kind specified by the initial element, used in the names of classes in zoology: Protozoa.

Origin of -zoa

< New Latin < Greek zôia, plural of zôion animal; see zoon
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for zoa



the plural of zoon


suffix forming plural proper nouns

indicating groups of animal organismsMetazoa

Word Origin for -zoa

from New Latin, from Greek zōia, plural of zōion animal, living being


noun plural zoa (ˈzəʊə) or zoons

a less common term for zooid (def. 1)
Derived Formszoonal, adjective

Word Origin for zoon

C19: from New Latin, from Greek zōion animal; related to Greek zōē life
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

Word Origin and History for zoa

plural of zoon.



1864, from Greek zoion "animal" (see zoo).

Online Etymology Dictionary, © 2010 Douglas Harper