/ Dictionary / Index D disulfide: Meaning and Definition of Find definitions for: di•sul•fide Pronunciation: (dī-sul'fīd, -fid), [key] — n. Chem. (in inorganic chemistry) a sulfide containing two atoms of sulfur, as carbon disulfide, CS. (in organic chemistry) a sulfide containing the bivalent group −SS−, as diethyl disulfide, CHS. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. disulfate disulfiram Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language