/ Thesaurus / P Synonyms of peptide bond Find synonyms for: Noun1. peptide bond, peptide linkage, chemical bond, bondusage: the primary linkage of all protein structures; the chemical bond between the carboxyl groups and amino groups that unites a peptideWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language