mesencephalon
English Thesaurus
1. the middle portion of the brain (noun.body)
| hypernym | : | neural structure, |
| definition | : | a structure that is part of the nervous system (noun.body) |
| part holonym | : | locus niger, nucleus niger, substantia nigra, |
| definition | : | 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 (noun.body) |
| part holonym | : | superior colliculus, |
| definition | : | an essential visual center between the retina and the striate cortex (noun.body) |
| part holonym | : | inferior colliculus, |
| definition | : | an essential auditory center in the midbrain (noun.body) |
| part meronym | : | brain, encephalon, |
| definition | : | that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord (noun.body) |
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