/ Thesaurus / M Synonyms of musculus Find synonyms for: Noun1. muscle, musculus, contractile organ, contractorusage: one of the contractile organs of the bodyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language