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Noun: phosphoric acid  fós'for-uk 'a-sid or fós'fór-ik 'a-sid [N. Amer], fós'fó-rik 'a-sid [Brit]
  1. An acid used in fertilizers and soaps: H3PO4
    - orthophosphoric acid

Derived forms: phosphoric acids

Type of: oxyacid, oxygen acid

Encyclopedia: Phosphoric acid