Surangular

from The Collaborative International Dictionary of English v.0.48

Surangular \Sur*an"gu*lar\, a. [Pref. sur- + angular.] (Anat.)
   Above the angular bone; supra-angular; -- applied to a bone
   of the lower jaw in many reptiles and birds. -- n. The
   surangular bone.
   [1913 Webster]