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Polyvalent serum

polyvalent serum n.
An antiserum obtained from an animal that has been inoculated with several species or strains of a bacterium.


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  • Polyvalent vaccine

    polyvalent vaccine n. A vaccine prepared from cultures of two or more strains of the same species of microorganism or virus. Also called multivalent vaccine.

  • Polyphrasia

    polyphrasia pol·y·phra·si·a (pŏl’ĭ-frā’zē-ə, -zhə) n. Extreme talkativeness.

  • 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 […]

  • Polyphony

    [puh-lif-uh-nee] /pəˈlɪf ə ni/ noun 1. Music. polyphonic composition; counterpoint. 2. Phonetics. representation of different sounds by the same letter or symbol. /pəˈlɪfənɪ/ noun (pl) -nies 1. polyphonic style of composition or a piece of music utilizing it 2. the use of polyphones in a writing system n. 1828, “multiplicity of sounds,” from Greek polyphonia […]

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