a tetrabasic acid, H4P2O6, produced by the slow oxidation of phosphorous in moist air.
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Origin of hypophosphoric acid
First recorded in 1850–55
Words nearby hypophosphoric acid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
British Dictionary definitions for hypophosphoric acid
/ (ˌhaɪpəfɒsˈfɒrɪk) /
a crystalline odourless deliquescent solid: a tetrabasic acid produced by the slow oxidation of phosphorus in moist air. Formula: H 4 P 2 O 6
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