masseterPronunciation: /maˈsiːtə/ (also masseter muscle)Definition of masseter noun Anatomy a muscle which runs through the rear part of the cheek from the temporal bone to the lower jaw on each side and closes the jaw in chewing. Origin: late 16th century: from Greek masētēr, from masasthai 'to chew'masseter in other Oxford dictionaries Definition of masseter in the US English dictionary
