clinocephaly

from The Century Dictionary.

• noun In craniology, a pathological deformation of the cranium resulting from a premature synostosis of the parietal bones with the alisphenoids and with the temporal bones, and characterized by a depression of the anterior portion of the parietal bones, behind the coronal suture.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a congenital defect in which the top of the head is depressed (concave instead of convex)