/ Dictionary / Index D diallyl sulfide: Meaning and Definition of Find definitions for: di•al'lyl sul'fide Pronunciation: (dī-al'il), [key] — Chem. Chem. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. diallage dialog box Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language