Webster's 1828 Dictionary
BULLACE
n.The bully-tree, or Chrysophyllum, a plant of two species, natives of the West Indies. 1. The wild plum, a species of Prunus.
Webster's 1913 Dictionary
BULLACE
Bul "lace, n. Etym: [OE. bolas, bolace, OF. beloce; of Celtic origin; cf. Arm. bolos, polos, Gael. bulaistear.] (Bot. ) (a ) A small European plum (Prunus communis, var. insitita ). See Plum. (b ) The bully tree.
New American Oxford Dictionary
bullace
bul lace |ˈbo͝olis ˈbʊləs | ▶noun a thorny shrub or small tree of the rose family that bears purple-black fruits. It is a wild plum, of which the damson is the cultivated form. [Prunus insititia (or Prunus domesticus subsp. insititia ), family Rosaceae. ] ORIGIN Middle English: from Old French buloce ‘sloe ’: of unknown origin.
Oxford Dictionary
bullace
bullace |ˈbʊlɪs | ▶noun a thorny shrub or small tree with small purple-black plum-like fruits. The damson is probably a cultivated form. ●Prunus domestica subsp. insititia (or P. insititia ), family Rosaceae. ORIGIN Middle English: from Old French buloce ‘sloe ’: of unknown origin.