/ Thesaurus / B Synonyms of buccinator muscle Find synonyms for: Noun1. cheek muscle, buccinator muscle, musculus buccinator, facial muscleusage: a muscle that flattens the cheek and retracts the angle of the mouthWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: entomology Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language