Australian spelling vs isomerise

Australian spelling is a noun but isomerise is not a noun.

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

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

Australian spelling (verb)	isomerise (verb)
	change into an isomer
	cause to change into an isomer