carburettor vs British spelling

carburettor and British spelling both are nouns.

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

carburettor (noun)	British spelling (noun)
mixes air with gasoline vapor prior to explosion	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')