/ Dictionary / Index N nonsulfide: Meaning and Definition of Find definitions for: non•sul•fide Pronunciation: (non-sul'fīd), [key] — adj. (of minerals) not containing a sulfide. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nonsuit nonsupport Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language