Search Result for "microcephalus": 
Wordnet 3.0

NOUN (1)

1. an abnormally small head and underdeveloped brain;
[syn: microcephaly, microcephalus, nanocephaly]



WordNet (r) 3.0 (2006):

microcephalus
    n 1: an abnormally small head and underdeveloped brain [syn:
         microcephaly, microcephalus, nanocephaly]