Source : Webster's Revised Unabridged Dictionary (1913)

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.