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calcium phosphate

any of several phosphates of calcium occurring naturally in some rocks and in animal bones, used as a fertilizer and food additive as well as in baking powder and dentifrices.
Origin of calcium phosphate
First recorded in 1865-70 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for calcium phosphate

calcium phosphate

the insoluble nonacid calcium salt of orthophosphoric acid (phosphoric(V) acid): it occurs in bones and is the main constituent of bone ash. Formula: Ca3(PO4)2
any calcium salt of a phosphoric acid. Calcium phosphates are found in many rocks and used esp in fertilizers
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
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calcium phosphate in Science
calcium phosphate  
  1. Any of three powdery phosphates of calcium:

  2. A colorless powder used in baking powders, as a plant food, as a plastic stabilizer, and in glass. Calcium phosphate is deliquescent, and will dissolve in the water it absorbs from the atmosphere if it is not kept in a closed container. Chemical formula: Ca(H2PO4)2.

  3. A white crystalline powder used as an animal food, as a plastic stabilizer, and in glass and toothpaste. Chemical formula: CaHPO4.

  4. A white powder that is used in ceramics, rubber, fertilizers, and for various purposes in the food industry. Chemical formula: Ca3(PO4)2.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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