centigrade scale vs Celsius scale

centigrade scale and Celsius scale both are nouns.

Word	Noun	Adjective	Verb	Adverb
centigrade scale	Yes	No	No	No
Celsius scale	Yes	No	No	No

As nouns, centigrade scale and Celsius scale are synonyms defined as:

centigrade scale and Celsius scale: a temperature scale that defines the freezing point of water as 0 degrees and the boiling point of water as 100 degrees

Other synonyms of centigrade scale include international scale.

centigrade scale (noun)	Celsius scale (noun)
a temperature scale that defines the freezing point of water as 0 degrees and the boiling point of water as 100 degrees	a temperature scale that defines the freezing point of water as 0 degrees and the boiling point of water as 100 degrees