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Medical Definition of Trichomoniasis vaginitis
1. Acute vaginitis or urethritis caused by infection with Trichomonas vaginalis, which does not invade the mucosa or the tissue but provokes an inflammatory reaction; infection is venereal or by other forms of contact; widespread infection in human populations is usually asymptomatic but may produce vaginitis, with vaginal and vulvar pruritis, leukorrhoea with frothy watery discharge, and (rarely) purulent urethritis in males. (05 Mar 2000)