sensitize vs American spelling

sensitize is not a noun while American spelling is a noun.

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

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

sensitize (verb)	American spelling (verb)
make sensitive or aware
make (a material) sensitive to light, often of a particular colour, by coating it with a photographic emulsion
make sensitive to a drug or allergen
cause to sense; make sensitive