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substantia nigra

[suh b-stan-shee-uh nahy-gruh, nig-ruh] /səbˈstæn ʃi ə ˈnaɪ grə, ˈnɪg rə/
noun, plural substantiae nigrae
[suhb-stan-shee-ee nahy-gree, nig-ree] /sʌbˈstæn ʃiˌi ˈnaɪ gri, ˈnɪg ri/ (Show IPA),
substantia nigras.
a deeply pigmented area of the midbrain containing dopamine-producing nerve cells.
Origin of substantia nigra
1880-85; < New Latin: black substance Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for substantia nigra

substantia nigra

/səbˈstænʃə ˈnaɪɡrə/
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
Word Origin
C20: from Latin, literally: dark material
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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substantia nigra in Medicine

substantia nigra substantia ni·gra (nī'grə, nĭg'rə)
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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