noun
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
• Syn: ↑nucleus niger, ↑locus niger
• Hypernyms: ↑neural structure
• Part Holonyms: ↑midbrain, ↑mesencephalon
Useful english dictionary. 2012.