trigonocephaly
noun
tri·go·no·ceph·a·ly
| \ ˌtrig-ə-nə-ˈsef-ə-lē
, ˌtrī-ˌgō-nō-
\
, ˌtrī-ˌgō-nō-
\
plural trigonocephalies
Medical Definition of trigonocephaly
: a congenital deformity in which the head is somewhat triangular and flat