What is "bonavist"

n. perennial twining vine of Old World tropics having trifoliate leaves and racemes of fragrant purple pealike 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, Indian bean, Egyptian bean, Lablab purpureus, Dolichos lablab]