'Epencephalon' definitions:

Definition of 'Epencephalon'

From: GCIDE

Epencephalon \Ep`en*ceph"a*lon\, n. [NL., fr. Gr. 'epi` upon, near + ? brain.] (Anat.) The segment of the brain next behind the midbrain, including the cerebellum and pons; the hindbrain. Sometimes abbreviated to epen. [1913 Webster]