Search Result for "macrencephaly": 
Wordnet 3.0

NOUN (1)

1. an abnormally large braincase; 



The Collaborative International Dictionary of English v.0.48:

macrencephaly \macrencephaly\, n.
   The condition of having an abnormally large braincase.
   [WordNet 1.5]


WordNet (r) 3.0 (2006):

macrencephaly
    n 1: an abnormally large braincase