/ Dictionary / Index S sea grape: Meaning and Definition of Find definitions for: sea' grape" Pronunciation: [key] a tropical American tree, Coccoloba uvifera, of the buckwheat family, bearing grapelike clusters of edible purple berries. the fruit itself. a gulfweed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sea grant college sea green Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language