mesencephalon

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mes·en·ceph·a·lon

 (mĕz′ĕn-sĕf′ə-lŏn′, mĕs′-)
n.
The midbrain.

mes′en·ce·phal′ic (-sə-făl′ĭk) adj.

mesencephalon

(ˌmɛsɛnˈsɛfəˌlɒn)
n, pl -la (-lə)
(Anatomy) the part of the brain that develops from the middle portion of the embryonic neural tube. Nontechnical name: midbrain Compare prosencephalon, rhombencephalon
mesencephalic adj

mes•en•ceph•a•lon

(ˌmɛs ɛnˈsɛf əˌlɒn, -lən, ˌmɛz-)

n., pl. -lons, -la (-lə).
the midbrain.
[1840–50]
mes`en•ce•phal′ic (-səˈfæl ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.mesencephalon - the middle portion of the brainmesencephalon - the middle portion of the brain  
neural structure - a structure that is part of the nervous system
brain, encephalon - that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord
locus niger, nucleus niger, substantia nigra - a layer of deeply pigmented grey matter in the midbrain; associated with the striate body; is involved in metabolic disturbances associated with Parkinson's disease and with Huntington's disease
superior colliculus - an essential visual center between the retina and the striate cortex
inferior colliculus - an essential auditory center in the midbrain
Translations
mésencéphale

mes·en·ceph·a·lon

n. mesencéfalo, el cerebro medio en la etapa embrionaria.