Buccinator (Lat. from buccinare, 'to sound a trumpet'), the name of a flat muscle in the cheeks, so called because, when the cheeks are distended with air, the contraction of the buccinator muscles forces it out.
Buccinator
Chambers's Encyclopaedia, Volume 2: Beaugency to Cataract, p. 507
Source scan(s): p. 0518