onychodystrophy
Pronunciation: on′i-kō-dis′trō-fē
Definition: Dystrophic changes in the nails occurring as a congenital defect or due to any illness or injury that may cause a malformed nail.
[onycho- + G. dys-, bad, + trophē, nourishment]
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.

