keratinization

[ kĕr′ə-tn-ĭ-zāshən ]

n.

The conversion of squamous epithelial cells into a horny material, such as nails.cornification
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.