nitrogenise vs Australian spelling

nitrogenise is not a noun while Australian spelling is a noun.

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

nitrogenise (noun)	Australian spelling (noun)
	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')

nitrogenise (verb)	Australian spelling (verb)
treat with nitrogen or a nitrogen compound