mandibular nerve
nounMedical Definition of mandibular nerve
: the one of the three major branches or divisions of the trigeminal nerve that supplies sensory fibers to the lower jaw, the floor of the mouth, the anterior two-thirds of the tongue, and the lower teeth and supplies motor fibers to the muscles of mastication
— called also inferior maxillary nerve, mandibular
— compare maxillary nerve, ophthalmic nerve