/ Dictionary / Index P peptide bond: Meaning and Definition of Find definitions for: pep'tide bond" Pronunciation: [key] — Biochem. Biochem. a covalent bond formed by joining the carboxyl group of one amino acid to the amino group of another, with the removal of a molecule of water. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. peptide peptidolytic Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language