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Definition of Orthophosphoric acid
1. Noun. An acid used in fertilizers and soaps: H3PO4.
Definition of Orthophosphoric acid
1. Noun. (inorganic compound) Ordinary phosphoric acid, H3PO4 ¹
¹ Source: wiktionary.com
Medical Definition of Orthophosphoric acid
1. Phosphoric acid, O==P(OH)3, distinguished by ortho-from meta-and pyrophosphoric acids, (HPO3)n and OP(OH2)OP(OH)2O, respectively, which are anhydrides of H3PO4; the ultimate anhydride is phosphorus pentoxide, P2O5. (05 Mar 2000)