- Parasitism is a relationship between two different organisms where the parasite harms the host.
When worms live in a dog and take nutrients from the dog, this is an example of parasitism.
parasitism definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- the state or condition of being a parasite
- the habits of a parasite
- in the U.S.S.R., the state of being unemployed
- Biol. a symbiotic association of two kinds of organisms in which the parasite is benefited and the host is usually harmed
- Med. the condition of being infested with parasites
parasitism definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- The characteristic behavior or mode of existence of a parasite or parasitic population.
parasitism - Medical Definition
The American Heritage® Medical Dictionary Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A symbiotic relationship in which one species, the parasite, benefits at the expense of the other, the host.
parasitism - Science Definition
A symbiotic relationship in which one organism (the parasite) benefits and the other (the host) is generally 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.