Try Our Apps


Pore Over vs. Pour Over

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 of phosphoric acid
1785-95 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the Web for phosphoric acid
Historical Examples
British Dictionary definitions for phosphoric acid

phosphoric acid

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

phosphoric acid phos·phor·ic acid (fŏs-fôr'ĭk)
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.
Cite This Source
phosphoric acid in Science
phosphoric acid
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for phosphoric acid

Few English speakers likely know this word

Word Value for phosphoric

Scrabble Words With Friends