/ Dictionary / Index S spinach: Meaning and Definition of Find definitions for: spin•ach Pronunciation: (spin'ich), [key] — n. a plant, Spinacia oleracea, cultivated for its edible, crinkly or flat leaves. the leaves. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: spinach (Thesaurus) spinaceous spinach aphid 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