D defs.my
Entry 1 sense Webster, 1913

Pyrophosphoric

· Pyr·o·phos·phor·ic · IPA
01 a. Pertaining to, or designating, an acid, H4P2O7, which is obtained as a white crystalline substance. Its salts are obtained by heating the p…
  1. 1.
    Pertaining to, or designating, an acid, H4P2O7, which is obtained as a white crystalline substance. Its salts are obtained by heating the phosphates.(Chem.)