lyophilisation vs British spelling

lyophilisation and British spelling both are nouns.

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

lyophilisation (noun)	British spelling (noun)
a method of drying food or blood plasma or pharmaceuticals or tissue without destroying their physical structure; material is frozen and then warmed in a vacuum so that the ice sublimes	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')