brach·y·ce·phal·ic 
(brăk′ĭ-sə-fălĭk) also brach·y·ceph·a·lous (-sĕfə-ləs)
(brăk′ĭ-sə-fălĭk) also brach·y·ceph·a·lous (-sĕfə-ləs)adj.
Having a short, broad head with a cephalic index over 80.
brach′y·cepha·ly (-sĕfə-lē), brach′y·cepha·lism n.