Jaw: The jaw consists of two main components

The jaw consists of two main components: the upper jaw, known as the maxilla, and the lower jaw, called the mandible . These structures are connected by a joint called the temporomandibular joint (TMJ). JAW definition: 1. the lower part of your face that moves when you open your mouth: 2. either of the two bones in…. Learn more. Looking for online definition of jaw in the Medical Dictionary? jaw explanation free. What is jaw ? Meaning of jaw medical term. What does jaw mean? JAW meaning: 1. the lower part of your face that moves when you open your mouth: 2. either of the two bones in…. Learn more.