polyvalent

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polyvalent

[¦päl·i′vā·lənt]
(chemistry)
Pertaining to an ion with more than one valency, such as the sulfate ion, SO42-. Also known as multivalent; polygen.
(immunology)
Of antigens, having many combining sites or determinants.
Pertaining to vaccines composed of mixtures of different organisms, and to the resulting mixed antiserum.