damson plum n 1: tropical American timber tree with dark hard heavy wood and small plumlike purple fruit [syn: {satinleaf}, {satin leaf}, {caimitillo}, {damson plum}, {Chrysophyllum oliviforme}] 2: plum tree long cultivated for its edible fruit [syn: {damson plum}, {damson plum tree}, {Prunus domestica insititia}] 3: dark purple plum of the damson tree [syn: {damson}, {damson plum}]