buccinator

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buc·ci·na·tor

 (bŭk′sĭ-nā′tər)
n.
The thin, flat muscle forming the wall of the cheek.

[Latin buccinātor, trumpeter (from its being the chief muscle used in blowing), from buccinātus, past participle of buccināre, to blow a horn, from būcina, buccina, horn, trumpet; see gwou- in Indo-European roots.]

buccinator

(ˈbʌksɪˌneɪtə)
n
(Anatomy) a thin muscle that compresses the cheeks and holds them against the teeth during chewing, etc
[C17: from Latin, from buccināre to sound the trumpet, from buccina trumpet]

buc•ci•na•tor

(ˈbʌk səˌneɪ tər)

n.
a thin, flat muscle of the cheek region, the action of which contracts and compresses the cheek.
[1665–75; < New Latin; Latin buccinātor, būcinātor trumpeter]