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[par-uh-si-tahyz, -sahy-] /ˈpær ə sɪˌtaɪz, -saɪ-/
verb (used with object), parasitized, parasitizing.
to live on (a host) as a parasite.
Also, especially British, parasitise.
Origin of parasitize
First recorded in 1885-90; parasite + -ize
Related forms
unparasitized, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for parasitize


/ˈpærəsɪˌtaɪz; -saɪ-/
verb (transitive)
to infest or infect with parasites
to live on (another organism) as a parasite
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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parasitize in Medicine

parasitize par·a·sit·ize (pār'ə-sĭ-tīz', -sī-)
v. par·a·sit·ized, par·a·sit·iz·ing, par·a·sit·iz·es
To live on or in a host as a parasite.

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