What is "megacephaly"

Megalocephalia \Meg`a*lo*ce*pha"li*a\, Megalocephaly \Meg`a*lo*ceph"a*ly\, n. [NL. megalocephalia, fr. Gr. ? having a large head.] (Med.) The condition of having an abnormally large head; called also megacephaly. -- Meg`a*lo*ce*phal"ic, a.

n. macrencephaly

n. an abnormally large head; differs from hydrocephalus because there is no increased intracranial pressure and the overgrowth is symmetrical [syn: macrocephaly, megalocephaly]