calcium oxide(redirected from Calcia)
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A white, caustic, lumpy powder, CaO, used as a refractory, as a flux, in glassmaking, in waste treatment, in insecticides, as an industrial alkali, and in manufacturing steel, paper, and building materials. Also called calx, lime3, quicklime.
(Elements & Compounds) a white crystalline base used in the production of calcium hydroxide and bleaching powder and in the manufacture of glass, paper, and steel. Formula: CaO. Also called: lime, quicklime, calx, burnt lime, calcined lime or fluxing lime
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|Noun||1.||calcium oxide - a white crystalline oxide used in the production of calcium hydroxide|
atomic number 20, Ca, calcium - a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
oxide - any compound of oxygen with another element or a radical