onychogryposis

[ ŏn′ĭ-kō-grə-pōsĭs ]

n.

Enlargement of the fingernails or toenails accompanied by increased thickening and curvature.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.