/ Dictionary / Index S salt hay: Meaning and Definition of Find definitions for: salt' hay" Pronunciation: [key] hay made up of salt grass, often used as fodder or as a mulch. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. salt grass salt horse Related Content Daily Word Quiz: sumptuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language