(n) a temperature scale that defines the freezing point of water as 0 degrees and the boiling point of water as 100 degrees, Syn. international scale, centigrade scale
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
n. The Celsius thermometer or scale, so called from Anders Celsius, a Swedish astronomer, who invented it. It is the same as the centigrade thermometer or scale. [ 1913 Webster ]