oxycephaly
/ˌɒksɪˈsɛfəli/ /ˌɒksɪˈsɛf(ə)li/ /ˌɒksɪˈkɛfəli/Medicine and Physical Anthropol.
noun
The condition of having a head or skull that is abnormally high and pointed in shape; specifically a congenital malformation of the skull characterized by an abnormally high forehead, reduced sagittal diameter, and pointed bregmatic region, resulting from premature closure of both coronal, and sometimes the sagittal and lambdoidal, sutures.
Origin
Late 19th century; earliest use found in American Naturalist. From oxy- + -cephaly, after French oxycéphalie.