vascularization vs American spelling

vascularization and American spelling both are nouns.

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

vascularization (noun)	American spelling (noun)
the organic process whereby body tissue becomes vascular and develops capillaries	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')