/ Dictionary / Index Z zinc sulfide: Meaning and Definition of Find definitions for: zinc' sul'fide Pronunciation: [key] — Chem. Chem. a white to yellow, crystalline powder, ZnS, soluble in acids, insoluble in water, occurring naturally as wurtzite and sphalerite: used as a pigment and as a phosphor on x-ray and television screens. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. zinc sulfate Zinder Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language