/ Dictionary / Index R rugosa rose: Meaning and Definition of Find definitions for: ru•go'sa rose' Pronunciation: (r-gō'su), [key] a shrub, Rosa rugosa, having densely bristled stems, wrinkled leaves, and fragrant red or white flowers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ruggles rugose Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language