megacephaly
  巨頭(畸形); 巨頭畸形
  mega·ceph·a·ly /-ˈsɛfəlɪ/ 名詞
  巨頭
  megacephaly
       n : an abnormally large head; differs from hydrocephalus because
           there is no increased intracranial pressure and the
           overgrowth is symmetrical [syn: macrocephaly, megalocephaly]