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[pol-ee-vey-luh nt, puh-liv-uh-luh nt] /ˌpɒl iˈveɪ lənt, pəˈlɪv ə lənt/

Chemistry. having more than one valence.
Bacteriology. (of an immune serum) containing several antibodies, each capable of reacting with a specific antigen.
/ˌpɒlɪˈveɪlənt; pəˈlɪvələnt/
(chem) having more than one valency
(of a vaccine)


1881, from poly- + -valent, from Latin valentem, present participle of valere “be worth” (see valiant). Coined by German chemist Emil Erlenmeyer (1825-1909), who also designed the flask that bears his name.

polyvalent pol·y·va·lent (pŏl’ē-vā’lənt)

pol’y·va’lence or pol’y·va’len·cy n.


Read Also:

  • Polyvalent allergy

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

  • Polyvalent serum

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

  • 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.

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