Mesencephalon

//ˌmɛzənˈsɛfələn// noun

Definitions

Noun
  1. 1
    A part of the brain located rostral to the pons and caudal to the thalamus and the basal ganglia, composed of the tectum (dorsal portion) and the tegmentum (ventral portion).
  2. 2
    the middle portion of the brain wordnet

Etymology

From mes- + encephalon.

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