pyrophosphoric acid en · NOUN
Etymology
From pyro- + phosphoric acid.
Meanings
- (uncountable) A syrupy liquid formed by the dehydration of phosphoric acid; its salts, the pyrophosphates, are used in medicine.
- (uncountable) The acid formed by removing a molecule of water from two molecules of phosphoric acid, H₄P₂O₇; this reaction slowly reverses in the presence of water.