sensitise vs sensitisation

sensitise is not a noun while sensitisation is a noun.

Word	Noun	Adjective	Verb	Adverb
sensitise	No	No	Yes	No
sensitisation	Yes	No	No	No

sensitise (noun)	sensitisation (noun)
	rendering an organism sensitive to a serum by a series of injections
	(psychology) the process of becoming highly sensitive to specific events or situations (especially emotional events or situations)
	the state of being sensitive (as to an antigen)

sensitise (verb)	sensitisation (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