Breadcrumb Home > Thesaurus > P Synonyms of pectoralis major Find synonyms for: Noun1. pectoralis major, musculus pectoralis major, greater pectoral muscle, pectoral, pectoral muscle, pectoralis, musculus pectoralis, pecsusage: a skeletal muscle that adducts and rotates the armWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. ✖ Related Content Daily Word Quiz: taradiddle Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language