The Collaborative International Dictionary
Surangular
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.
Wiktionary
surangular
a. (context anatomy English) Above the angular bone; supra-angular n. (context anatomy English) A bone of the lower jaw in many reptiles and birds.