'Barberry' definitions:

Definition of 'barberry'

From: WordNet
noun
Any of numerous plants of the genus Berberis having prickly stems and yellow flowers followed by small red berries

Definition of 'Barberry'

From: GCIDE
  • Barberry \Bar"ber*ry\, n. [OE. barbarin, barbere, OF. berbere.] (Bot.) A shrub of the genus Berberis, common along roadsides and in neglected fields. Berberis vulgaris is the species best known; its oblong red berries are made into a preserve or sauce, and have been deemed efficacious in fluxes and fevers. The bark dyes a fine yellow, esp. the bark of the root. [Also spelt berberry.] [1913 Webster]