buccinator

/ˈbʌksɪˌneɪtər/
noun
  1. A thin, flat muscle in the cheek that helps with chewing and blowing air out of the mouth.
    • The buccinator muscle is important for keeping food between your teeth while chewing.
    • When you blow up a balloon, your buccinator helps push the air out.
    • Trumpet players rely on strong buccinator muscles to control their embouchure.
Synonyms
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