trichomonacide /trik′ōmon″əsīd/ [Gk, thrix + monas, unit; L, caedere, to kill] , an agent destructive to Trichomonas vaginalis, a parasitic protozoan flagellate that causes a refractory type of vaginitis, cystitis, and urethritis. Metronidazole, an antimicrobial agent, is used in the treatment of women with trichomoniasis and their asymptomatic partners.
