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midbrain

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midbrain

Main Entry:: mid·brain
Pronunciation:: \ˈmid-ˌbrān\
Function:: noun
Date:: 1864

: the middle of the three primary divisions of the developing vertebrate brain or the corresponding part of the adult brain between the forebrain and hindbrain that includes the tectum, tegmentum, and substantia nigra —called also mesencephalon — see brain illustration

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