virilisation vs Australian spelling

virilisation and Australian spelling both are nouns.

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

virilisation (noun)	Australian spelling (noun)
the abnormal development of male sexual characteristics in a female (usually as the result of hormone therapies or adrenal malfunction)	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')