keratinization vs keratinize

keratinization is a noun but keratinize is not a noun.

Word	Noun	Adjective	Verb	Adverb
keratinization	Yes	No	No	No
keratinize	No	No	Yes	No

keratinization (noun)	keratinize (noun)
organic process by which keratin is deposited in cells and the cells become horny (as in nails and hair)

keratinization (verb)	keratinize (verb)
	become horny and impregnated with keratin
	convert into keratin