mandibulous

adjective2

1. •
   Pertaining to the mandible.

   • Near its termination there may be observed, as in the mandibulous hook of spiders, a very minute orifice, or, according to some authors, two distinct fissures. — 1836
2. •
   Having a pronounced lower jaw.

   • Ahead of them a group of mandibulous sales men had set up their combustion cups and incendiary ratchets to demonstrate their wares to whatever officers might come by. — 2013