/ Dictionary / Index A Allegheny barberry: Meaning and Definition of Find definitions for: Al'leghe'ny bar'berry Pronunciation: [key] a shrub, Berberis canadensis, of North America, resembling the common barberry of Europe, but having leaves with grayish undersides. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Allegheny Allegheny Mountains Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language