Calx n.; pl. E. Calxes L. Calces
1. Chem. (a) Quicklime. [Obs.] (b) The substance which remains when a metal or mineral has been subjected to calcination or combustion by heat, and which is, or may be, reduced to a fine powder.
Note: ☞ Metallic calxes are now called oxides.
2. Broken and refuse glass, returned to the post.
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