WordNet (r) 3.0 (2006):

bonavist
    n 1: perennial twining vine of Old World tropics having
         trifoliate leaves and racemes of fragrant purple pea-like
         flowers followed by maroon pods of edible seeds; grown as
         an ornamental and as a vegetable on the Indian
         subcontinent; sometimes placed in genus Dolichos [syn:
         hyacinth bean, bonavist, Indian bean, Egyptian
         bean, Lablab purpureus, Dolichos lablab]