noun Pathology.
a sexually transmitted disease typically asymptomatic in men and resulting in vaginitis with a copious, frothy discharge and itching in women, caused by a trichomonad Trichomonas vaginalis.
any of various other diseases caused by a trichomonad.

1915–20; trichomon(ad) + -iasis Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To trichomoniasis
World English Dictionary
trichomoniasis (ˌtrɪkəʊməˈnaɪəsɪs)
1.  inflammation of the vagina characterized by a frothy discharge, caused by infection with parasitic protozoa (Trichomonas vaginalis)
2.  any infection caused by parasitic protozoa of the genus Trichomonas
[C19: New Latin; see trichomonad, -iasis]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

trichomoniasis trich·o·mo·ni·a·sis (trĭk'ə-mə-nī'ə-sĭs)
n. pl. trich·o·mo·ni·a·ses (-sēz')

  1. A vaginal inflammation caused by a trichomonad (Trichomonas vaginalis) and resulting in a refractory discharge and itching.

  2. An infection caused by trichomonads, as a disease of cattle that commonly results in infertility or abortion in infected cows.

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


infection by the flagellate protozoan parasite Trichomonas. Infection is most often intestinal, but it may occur in other cavities or organs such as the liver. The species T. vaginalis may be common in women, causing irritation of the vaginal mucosa; more than 50 percent of women with abnormal vaginal discharge may harbour the organism.

Learn more about trichomoniasis with a free trial on

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature