Chalco-
a learned borrowing from Greek meaning “copper,” used in the formation of compound words:
chalcolithic.
combining form
indicating copper or a copper alloy: chalcopyrite, chalcolithic
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- Chalcocite
a common mineral, cuprous sulfide, Cu 2 S: an important ore of copper. noun a lead-grey or black mineral, found as a copper ore or in veins. It is a source of copper. Composition: copper sulphide. Formula: Cu2S. Crystal structure: orthorhombic
- Chalcogen
Chemistry. any of the elements oxygen, sulfur, selenium, tellurium, and polonium, which form the VIa group in the periodic table. noun any of the elements oxygen, sulphur, selenium, tellurium, or polonium, of group 6A of the periodic table
- Chalcogenide
Chemistry. a binary compound consisting of a chalcogen and a more electropositive element or radical.
- Chalcography
the art of engraving on copper or brass. noun the art of engraving on copper or brass
- Chalcolite
torbernite.