dolichocephalic
Pronunciation: /ˌdɒlɪkə(ʊ)sɪˈfalɪk, -kɛˈfalɪk-/
adjective
Anatomy- having a relatively long skull (typically with the breadth less than 80 (or 75) per cent of the length). Often contrasted with brachycephalic.

Origin:
mid 19th century: from Greek dolikhos 'long' + -cephalic