substantia nigra

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substantia ni·gra

 (nī′grə, nĭg′rə)
n.
A layer of large pigmented nerve cells in the midbrain that produce dopamine and whose destruction is associated with Parkinson's disease.

[New Latin : Latin substantia, substance + Latin nigra, feminine of niger, black.]

substantia nigra

(səbˈstænʃə ˈnaɪɡrə)
n
(Anatomy) a layer of grey matter in the brain that produces dopamine and contains pigmented nerve cells, loss of which has been associated with Parkinson's disease
[C20: from Latin, literally: dark material]

sub•stan•ti•a ni•gra

(səbˈstæn ʃi ə ˈnaɪ grə, ˈnɪg rə)

n., pl. sub•stan•ti•ae ni•grae (sʌbˈstæn ʃiˌi ˈnaɪ gri, ˈnɪg ri) substantia ni•gras.
a deeply pigmented area of the midbrain containing dopamine-producing nerve cells.
[1880–85; < New Latin: black substance]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.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
neural structure - a structure that is part of the nervous system
mesencephalon, midbrain - the middle portion of the brain