'Metencephalon' definitions:

Definition of 'metencephalon'

(from WordNet)
noun
The part of the hindbrain that develops into the pons and the cerebellum

Definition of 'Metencephalon'

From: GCIDE
  • Metencephalon \Met`en*ceph"a*lon\, n. [Met- + encephalon.] (Anat.) The posterior part of the brain, including the medulla; the afterbrain. Sometimes abbreviated to meten. [1913 Webster]