'Blackthorn' definitions:
Definition of 'blackthorn'
(from WordNet)
noun
A thorny Eurasian bush with plumlike fruits [syn: blackthorn, sloe, Prunus spinosa]
noun
Erect and almost thornless American hawthorn with somewhat pear-shaped berries [syn: blackthorn, pear haw, pear hawthorn, Crataegus calpodendron, Crataegus tomentosa]
Definition of 'Blackthorn'
From: GCIDE
- Blackthorn \Black"thorn`\, n. (Bot.) (a) A spreading thorny shrub or small tree ({Prunus spinosa}), with blackish bark, and bearing little black plums, which are called sloes; the sloe. (b) A species of Crat[ae]gus or hawthorn ({Crat[ae]gus tomentosa}). Both are used for hedges. [1913 Webster]