/ Dictionary / Index R raphe: Meaning and Definition of Find definitions for: ra•phe Pronunciation: (rā'fē), [key] — pl. -phae a seamlike union between two parts or halves of an organ or the like. (in certain ovules) a ridge connecting the hilum with the chalaza. a median line or slot on a cell wall of a diatom. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: raphe (Thesaurus) Raphaelesque raphia Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language