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World English Dictionary
calcium oxide
 
n
lime, quicklime, calx, burnt lime, calcined lime, Also called: fluxing lime 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

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American Heritage
Medical Dictionary

calcium oxide n.
A white, caustic, lumpy powder used in analytical and manufacturing procedures, in glassmaking, in waste treatment, in insecticides, and as an industrial alkali. Also called lime3.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
calcium oxide  
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
The presence of calcium oxide in the retort will also alter pyrolysis product yields.
Since the addition of soda makes the material somewhat water soluble, calcium oxide is added to have better chemical durability.
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