/ Dictionary / Index R rhamnose: Meaning and Definition of Find definitions for: rham•nose Pronunciation: (ram'nōs, -nōz), [key] — n. Biochem. deoxymannose; a deoxy hexose sugar, CHO, that is an important component of the polysaccharides of plant cell walls. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rhamnaceous rhamphotheca Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language