desensitising vs Australian spelling

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

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

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

desensitising (adjective)	Australian spelling (adjective)
making less susceptible or sensitive to either physical or emotional stimuli