American spelling vs photosensitize

American spelling is a noun but photosensitize is not a noun.

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

American spelling (noun)	photosensitize (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')

American spelling (verb)	photosensitize (verb)
	make (an organism or substance) sensitive to the influence of radiant energy and especially light