femtometre vs Australian spelling

femtometre and Australian spelling both are nouns.

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

femtometre (noun)	Australian spelling (noun)
a metric unit of length equal to one quadrillionth of a meter	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')