orthophosphoric acid

[ awr-thoh-fos-fawr-ik, -for-, awr- ]

nounChemistry.
  1. a colorless, crystalline solid, H3PO4, 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

1
First recorded in 1870–75; ortho- + phosphoric acid

Words Nearby orthophosphoric acid

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British Dictionary definitions for orthophosphoric acid

orthophosphoric acid

/ (ˌɔːθəʊfɒsˈfɒrɪk) /


noun
  1. a colourless soluble solid tribasic acid used in the manufacture of fertilizers and soaps. Formula: H 3 PO 4: Also called: phosphoric acid

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