The Collaborative International Dictionary of English v.0.48:

Dolichocephaly \Dol`i*cho*ceph"a*ly\
   (d[o^]l`[i^]*k[-o]*s[e^]f"[.a]*l[y^]), Dolichocephalism
\Dol`i*cho*ceph"a*lism\
   (d[o^]l`[i^]*k[-o]*s[e^]f"[.a]*l[i^]z'm), n. [Cf. F.
   dolichc['e]phalie.]
   The quality or condition of being dolichocephalic.
   [1913 Webster]

WordNet (r) 3.0 (2006):

dolichocephaly
    n 1: the quality of being dolichocephalic [syn:
         dolichocephaly, dolichocephalism]