solarization vs American spelling

solarization and American spelling both are nouns.

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

solarization (noun)	American spelling (noun)
exposure to the rays of the sun	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')