vulcanize vs American spelling

vulcanize is not a noun while American spelling is a noun.

Word	Noun	Adjective	Verb	Adverb
vulcanize	No	No	Yes	No
American spelling	Yes	No	No	No

vulcanize (noun)	American spelling (noun)
	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')

vulcanize (verb)	American spelling (verb)
undergo vulcanization
subject to vulcanization