desensitise vs British spelling

desensitise is not a noun while British spelling is a noun.

Word	Noun	Adjective	Verb	Adverb
desensitise	No	No	Yes	No
British spelling	Yes	No	No	No

desensitise (noun)	British spelling (noun)
	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')

desensitise (verb)	British spelling (verb)
make insensitive
cause not to be sensitive