balsam apple noun5 •A vine of species Momordica balsamina, found in Africa. •A vine grown for its bitter, edible fruit (Momordica charantia, bitter melon). •A wild cucumber (Echinocystis lobata). •A gourd of genus Echinopepon •Any tropical and subtropical tree of species Clusia major and Clusia rosea, native to the Americas, invasive elsewhere. formsbalsam apples