British spelling vs orthopaedic

British spelling is a noun but orthopaedic is not a noun.

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

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

British spelling (adjective)	orthopaedic (adjective)
	of or relating to orthopedics