Medical Encyclopedia bitter melon n. 1.Atropicalannualvine(Momordicacharantia)nativetoAsia,havingyellowflowersandorange,wartyfruitsthatopenatmaturitytoexposered-coatedseeds.Variouspartsoftheplantareusedintraditionalmedicineorforfood. 2.Theimmaturegreenfruitofthisplant,eatenas avegetable.Inbothsensesalsocalledbitter...