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orthophosphoric acid

[awr-thoh-fos-fawr-ik, -for-, awr-] /ˈɔr θoʊ fɒsˈfɔr ɪk, -ˈfɒr-, ˌɔr-/
noun, Chemistry.
a colorless, crystalline solid, H 3 PO 4 , the tribasic acid of pentavalent phosphorus: used chiefly in fertilizers, as a source of phosphorus salts, and in soft drinks as an acidulant and flavoring agent.
Origin of orthophosphoric acid
1870-75; ortho- + phosphoric acid Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for orthophosphoric-acid

orthophosphoric acid

a colourless soluble solid tribasic acid used in the manufacture of fertilizers and soaps. Formula: H3PO4 Also called phosphoric acid
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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orthophosphoric-acid in Medicine

orthophosphoric acid or·tho·phos·phor·ic acid (ôr'thō-fŏs-fôr'ĭk)
See phosphoric 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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