noun, plural zo·a [zoh-uh] /ˈzoʊ ə/. Biology Rare.
  1. any of the individuals of a compound organism.
  2. any individual, or the individuals collectively, produced from a single egg.
  3. zooid.

Origin of zoon

1860–65; < New Latin zōon < Greek zôion animal
Related formszo·on·al [zoh-uh-nl] /ˈzoʊ ə nl/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for zoonal


noun plural zoa (ˈzəʊə) or zoons
  1. 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 zoonal



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

Online Etymology Dictionary, © 2010 Douglas Harper