/ Dictionary / Index D dipeptidase: Meaning and Definition of Find definitions for: di•pep•ti•dase Pronunciation: (dī-pep'ti-dās", -dāz"), [key] — n. Biochem. any enzyme that catalyzes the hydrolysis of dipeptides. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dip dipeptide Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language