Definition of Calcium oxide

1. Noun. A white crystalline oxide used in the production of calcium hydroxide.

Exact synonyms: Burnt Lime, Calcined Lime, Calx, Fluxing Lime, Lime, Quicklime, Unslaked Lime
Terms within: Atomic Number 20, Ca, Calcium
Generic synonyms: Oxide
Derivative terms: Lime

Definition of Calcium oxide

1. Noun. (inorganic compound) A white powderous substance, CaO, commonly known as lime or quicklime; normally made by heating calcium carbonate. ¹

¹ Source:

Medical Definition of Calcium oxide

1. A chemical compound with the formula CaO which is a whitish, odourless solid that does not dissolve well in water. It will, however, react with water (H20) to form calcium hydroxide (CaOH, a base). It has a melting point of 2614 degrees Celsius and a boiling point of 2850 degrees Celsius. It can be made by heating calcium carbonate (CaCO3, limestone) until carbon dioxide (CO2) is released. It has a great many industrial uses. (09 Oct 1997)

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Lexicographical Neighbors of Calcium Oxide

calcium isotopes
calcium lactate
calcium lactophosphate
calcium leucovorin
calcium levulinate
calcium light
calcium magnesium-atpase
calcium magnesium dependent endodeoxyribonuclease
calcium mandelate
calcium metabolism
calcium metabolism disorders
calcium monohydrogen phosphate
calcium nitrate
calcium octadecanoate
calcium oxalate
calcium oxide (current term)
calcium pantothenate
calcium phosphate
calcium phosphates
calcium propionate
calcium pump
calcium pyrophosphate
calcium pyrophosphate dihydrate deposition disease
calcium radioisotopes
calcium rigor
calcium saccharate
calcium sign
calcium sorbate
calcium stearate

Literary usage of Calcium oxide

Below you will find example usage of this term as found in modern and/or classical literature:

1. Journal of the American Chemical Society by American Chemical Society (1900)
"total arsenious oxide as such, the soluble arsenic oxide from tie total arsenic oxide as such, and the soluble calcium oxide fros the total calcium oxide, ..."

2. The Chemical News and Journal of Industrial Science (1901)
"274 calcium oxide 21-94 Silica 51-07 Calcium sulphate .. .. 1-56 Iron oxide 1*34 Organic and ... calcium oxide 5*42 542 Silica 48-02 5-80 Calcium sulphate . ..."

3. Science by American Association for the Advancement of Science (1915)
"For plants containing a relatively low calcium oxide content the ... A calcium oxide content of less than one per cent, may be considered relatively low. ..."

4. Principles of General Physiology by William Maddock Bayliss (1920)
"If, again, we start with calcium oxide at 547°, and expose it to carbon dioxide at a ... As to that of the solids, calcium carbonate and calcium oxide, ..."

5. Principles of inorganic chemistry by Harry Clary Jones (1903)
"calcium oxide, or Lime, CaO.—Calcium combines with oxygen, forming the oxide, CaO. This is most conveniently prepared by heating the carbonate : — CaCO,=CO, ..."

6. Transactions of the American Institute of Mining, Metallurgical and (1912)
"The value of lime for this purpose depends upon the percentage of calcium oxide contained, which is determined by three factors: 1, purity of the limestone ..."

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