tribade noun.
['trɪbǝd] E17.[French, or its source Latin tribas, -ad- from Greek tribas, from tribein rub.]A lesbian.
■ tribadism noun (a) lesbianism;
(b) a lesbian method of intercourse in which one partner lies on top of the other and simulates the movements of the male in heterosexual intercourse:
E19. [TahlilGaran] English Dictionary ▲