Polyvalent allergy



polyvalent allergy n.
Hypersensitivity that occurs simultaneously to several specific antigens.

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  • Polyphosphoric acid

    /ˌpɒlɪfɒsˈfɒrɪk/ noun 1. any one of a series of oxyacids of phosphorus with the general formula Hn+2PnO3n+1. The first member is pyrophosphoric acid (n = 2) and the series includes the highly polymeric metaphosphoric acid. The higher acids exist in an equilibrium mixture 2. a glassy or liquid mixture of orthophosphoric and polyphosphoric acids: used […]



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