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Meaning of cornification

cor•ni•fi•ca•tion

Pronunciation: (kôr"nu-fi-kā'shun), [key]
— n. Biol.
  1. the formation of a horny layer of skin, or horny skin structures, as hair, nails, or scales, from squamous epithelial cells.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.