noun, plural calx·es, cal·ces [kal-seez] /ˈkæl siz/.
Origin of calx
Examples from the Web for calx
But at a later time it was proved that iron was also produced by heating the calx of iron with carbon.Heroes of Science|M. M. Pattison Muir
In this case no red sublimate arose as customarily takes place with that calx which is prepared by the acid of nitre.Discovery of Oxygen, Part 2|Carl Wilhelm Scheele
To deny this would be equivalent to a denial that the Latin verb calcare came from calx, 'the heel.'
The calx of cobalt is of a deep blue colour, which, when fused, makes the blue glass called smalt.
All transparent enamels are made opaque by the addition of calx, which is a mixture of tin and lead calcined.