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substantia nigra
4 dictionary results for: Substantia nigra
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
sub·stan·ti·a ni·gra       [suhb-stan-shee-uh nahy-gruh, nig-ruh] Pronunciation Key
–noun, plural sub·stan·ti·ae ni·grae       [suhb-stan-shee-ee nahy-gree, nig-ree] Pronunciation Key, substantia nigras.
a deeply pigmented area of the midbrain containing dopamine-producing nerve cells.
[Origin: 1880–85; < NL: black substance]
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
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American Heritage Dictionary - Cite This Source - Share This
substantia ni·gra       (nī'grə, nĭg'rə)  Pronunciation Key 
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.]

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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WordNet - Cite This Source - Share This
substantia nigra

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 

WordNet® 3.0, © 2006 by Princeton University.
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American Heritage Stedman's Medical Dictionary - Cite This Source - Share This

substantia nigra substantia ni·gra (nī'grə, nĭg'rə)
n.
A layer of large pigmented nerve cells in the mesencephalon that produce dopamine and whose destruction is associated with Parkinson's disease. Also called nigra.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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