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substantia nigra

Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A layer of large pigmented nerve cells in the midbrain that produce dopamine and whose destruction is associated with Parkinson's disease.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The name given to the dopaminergic pars in the tegmentum, which is naturally colored black.
  • n. Another part is the pars reticulata GABAergic close to pallidum
  • n. The nucleus which is damaged in the brain of Parkinson's and Parkinsonian patients.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. 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

Etymologies

New Latin : Latin substantia, substance + Latin nigra, feminine of niger, black.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Directly from Latin meaning the black body or substance. (Wiktionary)

Examples

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