universal metre vs Canadian spelling

universal metre and Canadian spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
universal metre	Yes	No	No	No
Canadian spelling	Yes	No	No	No

universal metre (noun)	Canadian spelling (noun)
a unit of length equivalent to the length of a free seconds pendulum; differs from the modern metre by half a centimetre, introduced by Tito Livio Burattini in 1675.	English orthography used in Canada (characterized by 'analyze', 'centre', 'useable')