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nigrities lin´guae black tongue.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
1. in canines, a disorder associated with a deficency of nicotinic acid.
2. black to yellowish-brown discoloration of the dorsum of the tongue due to staining by exogenous material such as the components of tobacco; usually superimposed on hairy tongue.
Farlex Partner Medical Dictionary © Farlex 2012
A black pigmentation of the tongue.
See also: nigrities
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