phosphoric-acid

phosphoric acid

noun Chemistry.
any of three acids, orthophosphoric acid, H 3 PO 4 , metaphosphoric acid, HPO 3 , or pyrophosphoric acid, H 4 P 2 O 7 , derived from phosphorus pentoxide, P 2 O 5 , and various amounts of water.

Origin:
1785–95

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World English Dictionary
phosphoric acid
 
n
1.  Also called: orthophosphoric acid, Systematic name: phosphoric(V) acid a colourless solid tribasic acid used in the manufacture of fertilizers and soap. Formula: H3PO4
2.  metaphosphoric acid pyrophosphoric acid See also hypophosphoric acid any oxyacid of phosphorus produced by reaction between phosphorus pentoxide and water

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American Heritage
Medical Dictionary

phosphoric acid phos·phor·ic acid (fŏs-fôr'ĭk)
n.
A clear colorless liquid used in pharmaceuticals. Also called orthophosphoric acid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
phosphoric acid   (fŏs-fôr'ĭk)  Pronunciation Key 
A clear liquid, or a solid that forms colorless, rhombus-shaped crystals, that is used in fertilizers, detergents, food flavoring, and pharmaceuticals. Chemical formula: H3PO4.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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