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calcium oxide

noun

  1. Also called: lime quicklime calx burnt lime calcined lime fluxing limea white crystalline base used in the production of calcium hydroxide and bleaching powder and in the manufacture of glass, paper, and steel. Formula: CaO

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


calcium oxide

  1. A white solid compound that has a very high melting point and reacts with water to form calcium hydroxide. It is often prepared commercially by heating limestone. Calcium oxide is used as an alkali for treating acidic soils and in manufacturing steel, paper, and glass, and it is the main component of lime. Chemical formula: CaO.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The path is a relic of an earlier era, when a railroad cut through the area and a brick furnace raged along the Stillaguamish River, converting limestone into calcium oxide.

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Lime is a white caustic powdery substance comprised of calcium oxide, made by heating limestone.

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Lime clasts have long been observed in the quicklime, or calcium oxide, that was a mainstay of the Roman empire’s concrete mixtures.

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Once you grind calcium oxide into powder and add water, you re-create limestone.

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When these are treated at temperature of about 900C, the pellets decompose into a CO2 stream and calcium oxide.

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calcium oxalatecalcium permanganate