depolarization vs American spelling

depolarization and American spelling both are nouns.

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

depolarization (noun)	American spelling (noun)
a loss of polarity or polarization	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')