onychodystrophy
(ŏn′ĭ-kō-dĭs′trə-fē)- Dystrophic changes in fingernails or toenails, such as malformation or discoloration, occurring as a congenital defect or due to illness or injury.
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The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.