epencephalon

from The Century Dictionary.

• noun In anatomy: That part of the brain which consists of the cerebellum and pons Varolii. Also called metencephalon (which see).
• noun The foregoing together with the medulla oblongata.
• noun Also epencephal.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Anat.) The segment of the brain next behind the midbrain, including the cerebellum and pons; the hindbrain. Sometimes abbreviated to epen.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun anatomy The segment of the brain next behind the midbrain, including the cerebellum and pons; the hindbrain.