Blackthorn - Definition
blackthorn
n 1: a thorny Eurasian bush with plumlike fruits [syn:
blackthorn, sloe, Prunus spinosa]
2: erect and almost thornless American hawthorn with somewhat
pear-shaped berries [syn: blackthorn, pear haw, pear
hawthorn, Crataegus calpodendron, Crataegus tomentosa]