keratinisation vs Australian spelling

keratinisation and Australian spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
keratinisation	Yes	No	No	No
Australian spelling	Yes	No	No	No

keratinisation (noun)	Australian spelling (noun)
organic process by which keratin is deposited in cells and the cells become horny (as in nails and hair)	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')