pyrophosphoric acid

[ pahy-roh-fos-fawr-ik, -for-, pahy- ]
/ ˈpaɪ roʊ fɒsˈfɔr ɪk, -ˈfɒr-, ˌpaɪ- /

noun Chemistry.

a crystalline, water-soluble powder, H4P2O7, formed by the union of one molecule of phosphorus pentoxide with two molecules of water.

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Origin of pyrophosphoric acid

First recorded in 1865–70; pyro- + phosphoric
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for pyrophosphoric acid

pyrophosphoric acid
/ (ˌpaɪrəʊfɒsˈfɒrɪk) /

noun

a crystalline soluble solid acid formed by the reaction between one molecule of phosphorus pentoxide and two water molecules. Formula: H 4 P 2 O 7See also polyphosphoric 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

Medical definitions for pyrophosphoric acid

pyrophosphoric acid
[ pī′rō-fŏs-fôrĭk ]

n.

A syrupy viscous liquid used as a catalyst, in organic chemical synthesis, and, in its salt forms, as medicines.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for pyrophosphoric acid

pyrophosphoric acid
[ pī′rō-fŏs-fôrĭk ]

A viscous liquid used as a catalyst and in the manufacture of organic chemicals. Chemical formula: H4P2O7.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.