Calcium-containing inorganic material
Any of various mineral and industrial forms of calcium oxide differing chiefly in water content and percentage of constituent such as silica, alumina and iron.
A white powderous substance, CaO, normally made by heating calcium carbonate.
The substance which remains after a metal or mineral has been thoroughly burnt, once seen as being the essential substance left after the expulsion of phlogiston, but now recognised as being the metallic oxide (or, in some cases, the metal in a state of sublimation).
Any inorganic material containing calcium, usually calcium oxide (quicklime) or calcium hydroxide (slaked lime).
Calcium oxide, which is produced by heating (calcining) limestone and gives slaked lime on treatment with water.