I wrote: "It was replaced by "degree Celsius" by the 9th CGPM, in 1948. There was a third term, "centisimal degree," which also disappeared at that time."
It is, in fact, more accurate to say, that "degree centigrade" and "centesimal degree" were dropped in favor of the third, already existing term, "degree Celsius." Bill Potts, CMS Roseville, CA http://metric1.org [SI Navigator]
