: to become converted or changed into horn or horny substance or tissue cornified layers of epithelial cells.

What is Cornification in biology?

noun Biology. the formation of a horny layer of skin, or horny skin structures, as hair, nails, or scales, from squamous epithelial cells.

What does Colorado mean?

(ˌkɒləˈrɑːdəʊ ) 1. a state of the central US: consists of the Great Plains in the east and the Rockies in the west; drained chiefly by the Colorado, Arkansas, South Platte, and Rio Grande Rivers. Capital: Denver.