American spelling vs demineralization

American spelling and demineralization both are nouns.

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

American spelling (noun)	demineralization (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	the removal of minerals and mineral salts from a liquid (especially from water)
	abnormal loss of mineral salts (especially from bone)