catheterization vs American spelling

catheterization and American spelling both are nouns.

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

catheterization (noun)	American spelling (noun)
the operation of introducing a catheter into the body	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')