n.
Pronunciation: ˌ tri-k ə -m ə - ' n ī - ə -s ə s
Function: noun
Inflected Form: plural -a · ses \ - ˌ s ē z \
Etymology: New Latin, from Trichomonas + -iasis
Date: 1915
: infection with or disease caused by trichomonads: as a : a human sexually transmitted disease occurring especially as vaginitis with a persistent discharge and caused by a trichomonad ( Trichomonas vaginalis ) that may also invade the male urethra and bladder b : a venereal disease of domestic cattle marked by abortion and sterility c : one or more diseases of various birds resembling blackhead