xenoparasite

xenoparasite definition - medical

xen·o·par·a·site (zĕnˌə-părˈə-sītˌ, zēˌnə-)

noun
An ectoparasite that becomes pathogenic when the resistance of its host weakens.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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