The Collaborative International Dictionary
macrocephalic
macrocephalic \mac`ro*ce*phal"ic\, macrocephalous \mac`ro*ceph"a*lous\, a. [Macro + Gr. kefalh` the head.]
Of or pertaining to macrocephaly; having an unusually large head.
(Bot.) Having the cotyledons of a dicotyledonous embryo confluent, and forming a large mass compared with the rest of the body.
--Henslow.
Douglas Harper's Etymology Dictionary
Wiktionary
macrocephalic
a. having an abnormally large head
WordNet
macrocephalic
adj. having an exceptionally large head and brain [syn: macrocephalous]
Usage examples of "macrocephalic".
The slim, hairy body quivered with fear, but the great macrocephalic head wove back and forth, jutting and staring in defiance.