(from Greek masasthai, to chew), prominent muscle of the jaw. It arises from the zygomatic bone (cheekbone) and is inserted at the rear of the mandible (jawbone). Its contraction raises the mandible, and it is particularly used in chewing food. The masseter can be easily felt at the side of the jaw when the teeth are clenched.
MASSETER
Meaning of MASSETER in English
Britannica English vocabulary. Английский словарь Британика. 2012