[ par-uh-sahy-tiz-uh m, -si- ]
/ ˈpær ə saɪˌtɪz əm, -sɪ- /
Biology. a relation between organisms in which one lives as a parasite on another.
a parasitic mode of life or existence.
Pathology. a diseased condition due to parasites.
(in some totalitarian countries)
- unemployment or refusal to work.
- employment in work considered nonessential by the state.
Can You Untangle These Regional Mix-Ups?Watch what you say while you're traveling around the US - not all words mean the same things in the same places.
Related formsnon·par·a·sit·ism, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for non-parasitism
/ (ˈpærəsaɪˌtɪzəm) /
the relationship between a parasite and its host
the state of being infested with parasites
the state of being 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
Medicine definitions for non-parasitism
[ păr′ə-sĭ-tĭz′əm, -sī- ]
A symbiotic relationship in which one species, the parasite, benefits at the expense of the other, the host.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for non-parasitism
[ păr′ə-sĭ-tĭz′əm ]
A relationship between two organisms in which one organism (the parasite) benefits and the other (the host) is harmed. Parasites derive nutrition from their host and may also gain other benefits such as shelter and a habitat in which to grow and reproduce. See more at parasite. Compare amensalism commensalism mutualism.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.