quadratojugal bone

From The Collaborative International Dictionary of English v.0.48:

Quadratojugal \Quad*ra`to*ju"gal\, a. (Anat.)
   (a) Of or pertaining to the quadrate and jugal bones.
   (b) Of or pertaining to the quadratojugal bone. -- n. The
       quadratojugal bone.
       [1913 Webster]

   Quadratojugal bone (Anat.), a bone at the base of the lower
      jaw in many animals.
      [1913 Webster]
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