Mandibular \Man*dib"u*lar\, a. [Cf. F. mandibulaire.]

Of or pertaining to a mandible; like a mandible. -- n. The principal mandibular bone; the mandible.

Mandibular arch (Anat.), the most anterior visceral arch, -- that in which the mandible is developed.

Source: Webster's Revised Unabridged Dictionary (1913)