mercerize vs American spelling

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

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

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

mercerize (verb)	American spelling (verb)
treat to strengthen and improve the luster