The Collaborative International Dictionary
Postorbital
Postorbital \Post*or"bit*al\, a. [Pref. post- + orbital.] (Anat. & Zo["o]l.) Situated behind the orbit; as, the postorbital scales of some fishes and reptiles. -- n. A postorbital bone or scale.
Wiktionary
postorbital
a. Behind the orbit of the eye. alt. Behind the orbit of the eye. n. A postorbital bone or scale.