Meaning of “buccinator” in the English Dictionary

british dictionary

"buccinator" in British English

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buccinatornoun [ C ]

uk /ˈbʌk.sɪ.neɪ.tər/ us /ˈbʌk.səˌneɪ.t̬ɚ/ specialized

the flat, thin cheek muscle, inside the mouth at the side of the face:

The buccinator helps to hold the cheek to the teeth during chewing.

(Definition of “buccinator” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)