[ trik-uh-muh-nahy-uh-sis ]
/ ˌtrɪk ə məˈnaɪ ə sɪs /

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.

Origin of trichomoniasis

First recorded in 1915–20; trichomon(ad) + -iasis Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for trichomoniasis


/ (ˌtrɪkəʊməˈnaɪəsɪs) /


inflammation of the vagina characterized by a frothy discharge, caused by infection with parasitic protozoa (Trichomonas vaginalis)
any infection caused by parasitic protozoa of the genus Trichomonas

Word Origin for trichomoniasis

C19: New Latin; see trichomonad, -iasis
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

Word Origin and History for trichomoniasis



1915, from tricho-, Latinized form of Greek trikho-, comb. form of thrix (genitive trikhos) "hair" + -monas + -iasis. Coined 1836 in French.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for trichomoniasis


[ trĭk′ə-mə-nīə-sĭs ]

n. pl. trich•o•mo•ni•a•ses (-sēz′)

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