[f. as next + -ATION.]
1. The change to a more horny texture of the cells of the epidermis, as they are pressed out by the growth of younger cells beneath.
1887. in Syd. Soc. Lex.
1891. W. A. Jamieson, Dis. Skin, i. (ed. 3), 4. Unna regards it as connected with keratinization.
2. Pharmacy. The coating of pills with a horny substance, so that they may pass through the stomach without being dissolved, and act directly on the intestines (Syd. Soc. Lex., 1887).
