pasteurize vs American spelling

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

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

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

pasteurize (verb)	American spelling (verb)
heat food in order to kill harmful microorganisms