Lablab purpureus 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}]