oxidisation vs British spelling

oxidisation and British spelling both are nouns.

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

oxidisation (noun)	British spelling (noun)
the process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')