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[ek-toh-par-uh-sahyt] /ˌɛk toʊˈpær əˌsaɪt/
an external parasite (opposed to endoparasite).
Origin of ectoparasite
1860-65; ecto- + parasite
Related forms
[ek-toh-par-uh-sit-ik] /ˌɛk toʊˌpær əˈsɪt ɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for ectoparasite
  • Human fine body hair enhances ectoparasite detection.
  • The mosquito, if it sucks the blood of an organism would by this definition be considered an ectoparasite.
  • ectoparasite infestations are to be treated by health care staff on an individual basis promptly and thoroughly.
  • The vector is thought to be an ectoparasite of flying squirrels, probably a louse or flea.
British Dictionary definitions for ectoparasite


a parasite, such as the flea, that lives on the outer surface of its host Also called exoparasite
Derived Forms
ectoparasitic (ˌɛktəʊˌpærəˈsɪtɪk) adjective
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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ectoparasite in Medicine

ectoparasite ec·to·par·a·site (ěk'tə-pār'ə-sīt')
A parasite that lives on the surface or exterior of the host organism, such as an ectophyte or an ectozoon.

ec'to·par'a·sit'ic (-sĭt'ĭk) adj.
ec'to·par'a·sit·ism (-sĭ-tĭz'əm, -sī-) n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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ectoparasite in Science
See under parasite.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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