/ Dictionary / Index P peptide: Meaning and Definition of Find definitions for: pep•tide Pronunciation: (pep'tīd), [key] — n. Biochem. a compound containing two or more amino acids in which the carboxyl group of one acid is linked to the amino group of the other. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: peptide (Thesaurus) peptidase peptide bond Related Content Daily Word Quiz: miscreant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language