| Hypophosphorous | a. [ Pref. hypo- + phosphorous. ] (Chem.) Pertaining to, or containing, phosphorus in a lower state of oxidation than in phosphoric compounds; as, hypophosphorous acid. [ 1913 Webster ]
Hypophosphorous acid (Chem.) , an acid, H3PO2, whose salts are produced by the action of barium hygrate on phosphorus. It may be obtained from its water solution, by exaporation and freezing, as a white crystalline substance. It is a powerful reducing agent. [ 1913 Webster ]
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| Phosphorous | a. [ Cf. F. phosphoreux. ] (Chem.) Of or pertaining to phosphorus; resembling or containing phosphorus; specifically, designating those compounds in which phosphorus has a lower valence as contrasted with phosphoric compounds; as, phosphorous acid, H3PO3. [ 1913 Webster ] |
| Sulphophosphorous | a. (Chem.) Of, pertaining to, or designating, a hypothetical acid of phosphorus, analogous to phosphorous acid, and known in its salts. [ 1913 Webster ] |
