• Webster's Revised Unabridged Dictionary
    • n Epencephalon (Anat) The segment of the brain next behind the midbrain, including the cerebellum and pons; the hindbrain. Sometimes abbreviated to epen.
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Century Dictionary and Cyclopedia
    • n epencephalon In anatomy: That part of the brain which consists of the cerebellum and pons Varolii. Also called metencephalon (which see).
    • n epencephalon The foregoing together with the medulla oblongata.
    • n epencephalon Also epencephal.
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Chambers's Twentieth Century Dictionary
    • n Epencephalon ep-en-sef′a-lon the hindmost of the divisions of the brain
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Webster's Revised Unabridged Dictionary
NL., fr. Gr. 'epi` upon, near + brain