/ Dictionary / Index P potato: Meaning and Definition of Find definitions for: po•ta•to Pronunciation: (pu-tā'tō, -tu), [key] — pl. -toes. Also calledthe edible tuber of a cultivated plant, Solanum tuberosum, of the nightshade family. the plant itself. See(defs. 1, 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: potato (Thesaurus) potation potato apple Related Content Daily Word Quiz: pugilist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language