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calcium phosphate

noun
1.
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
1865-1870
1865-70
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for calcium phosphate
  • They used acetic acid to dissolve the limestone, which leaves behind a residue of fossils preserved by calcium phosphate minerals.
  • Even the animals' soft tissues, cast in calcium phosphate, are clearly defined.
British Dictionary definitions for calcium phosphate

calcium phosphate

noun
1.
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
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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