/ Dictionary / Index S sweet potato: Meaning and Definition of Find definitions for: sweet' pota"to Pronunciation: [key] a plant, Ipomoea batatas, of the morning glory family, grown for its sweet, edible, tuberous roots. the root itself, used as a vegetable. ocarina. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sweet pepperbush sweet roll Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language