midbrain

from WordNet (r) 3.0 (2006)
midbrain
    n 1: the middle portion of the brain [syn: {midbrain},
         {mesencephalon}]
from The Collaborative International Dictionary of English v.0.48
Midbrain \Mid"brain`\, n. [Mid, a. + brain.] (Anat.)
   The middle segment of the brain; the mesencephalon. See
   {Brain}.
   [1913 Webster]
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