[ zoh-on ]
/ ˈzoʊ ɒn /

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.

Nearby words

  1. zoomastigophorea,
  2. zoometric,
  3. zoometry,
  4. zoomorphic,
  5. zoomorphism,
  6. zoonal,
  7. zoonosis,
  8. zoonotic,
  9. zoonotic cutaneous leishmaniasis,
  10. zoonotic potential

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 “animal,” “organism” of the kind specified by the initial element, often corresponding to zoological class names ending in -zoa, with -zoon used to name a single member of such a class: protozoon.

Origin of -zoon

see origin at zoon

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for zoon

British Dictionary definitions for zoon


/ (ˈzəʊɒn) /

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


n combining form

indicating an individual animal or an independently moving entity derived from an animalspermatozoon

Word Origin for -zoon

from Greek zōion animal

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

Medicine definitions for zoon



Animal; independently moving organic unit:spermatozoon.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.