substantia nigra

Từ điển WordNet v3.1 - WordNet Dictionary

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