all natural, proper, or characteristic movements of the mandible made during speech, mastication, yawning, swallowing, and other associated movements.
func·tion·al man·dib·u·lar move·ments
(fŭngkshŭn-ăl man-dibyū-lăr mūvmĕnts) All natural or characteristic movements of mandible made during speech, mastication, yawning, swallowing, and other movements.