/ Thesaurus / Q Synonyms of quadriceps femoris Find synonyms for: Noun1. quadriceps, quadriceps femoris, musculus quadriceps femoris, quad, extensor muscle, extensorusage: a muscle of the thigh that extends the legWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language