noun, plural calx·es, cal·ces [kal-seez] /ˈkæl siz/.
Origin of calx
Examples from the Web for calces
It may be resuscitated, like the calces of Antimony, into a Regulus, by re-uniting it with a phlogiston.
All the calces of Antimony, when exposed to a violent fire, are converted into Glass; but not all with the same facility.
Metals then were regarded as compounds of calces and phlogiston.The Life of Sir Humphrey Davy, Bart. LL.D., Volume 2 (of 2)|John Ayrton Paris