pseudoacanthosis nigricans

[sōō′dō-ăk′ăn-thōsĭs nīgrĭ-kănz′, nĭgrĭ-]
n.
  1. Acanthosis nigricans occurring secondary to maceration of the skin from excessive sweating, or in obese adults who have dark complexions, or in association with endocrine disorders.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.