linear metre vs Canadian spelling

linear metre and Canadian spelling both are nouns.

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

linear metre (noun)	Canadian spelling (noun)
a meter in which the deflection of the pointer is proportional to the quantity measured.	English orthography used in Canada (characterized by 'analyze', 'centre', 'useable')