parasite

Medical Dictionary

parasite par·a·site (pār'ə-sīt')
n.

  1. An organism that grows, feeds, and is sheltered on or in a different organism while contributing nothing to the survival of its host.

  2. In conjoined twins, the usually incomplete twin that derives its support from the more nearly normal fetus.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Explore Dictionary.com
Previous Definition: parasinoidal sinus
Next Definition: parasitemia
Words Near: parasite
More from Thesaurus.com
Synonyms and Antonyms for parasite
More from Reference.com
Search for articles containing parasite
More from Dictionary.com Translator
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature