megaloencephalon

meg·a·lo·en·ceph·a·lon

(meg'ă-lō-en-sef'ă-lon), An abnormally large brain. Synonym(s): macroencephalon [megalo- + G. enkephalos, brain]

macroencephaly

A brain weighing > 1800 g, due to expansion of any subdural component (e.g., cerebral tissue, liquid, blood, tumour) or storage disease.

meg·a·lo·en·ceph·a·lon

(meg'ă-lō-en-sef'ă-lon) An abnormally large brain. [megalo- + G. enkephalos, brain]