or ep·i·zo·ite

[ ep-uh-zoh-on, -uh n ]
/ ˌɛp əˈzoʊ ɒn, -ən /

noun, plural ep·i·zo·a [ep-uh-zoh-uh] /ˌɛp əˈzoʊ ə/. Biology.

an external parasite or commensal on the body of an animal; ectozoon.

Origin of epizoon

From New Latin, dating back to 1830–40; see origin at epi-, -zoon
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for epizoon


/ (ˌɛpɪˈzəʊɒn) /

noun plural -zoa (-ˈzəʊə)

an animal, such as a parasite, that lives on the body of another animal

Derived Forms

epizoan, adjective

Word Origin for epizoon

C19: New Latin, from epi- + 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 epizoon


[ ĕp′ĭ-zōŏn, -ən ]

n. pl. ep•i•zo•a (-zōə)

An epizoic organism.

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