poly·va·lent /-ˈvelənt ||pəˈlɪvələnt/
  (a.)多價的
  poly·va·lent /ˌpɑlɪˈvelənt/ 形容詞
  多價的
  polyvalent
  多價
  Po·lyv·a·lent a.  Chem. Multivalent.
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  polyvalent
       adj 1: containing several antibodies each capable of counteracting
              a specific antigen; "a polyvalent vaccine" [ant: monovalent]
       2: having more than one valence, or having a valence of 3 or
          higher [syn: multivalent] [ant: monovalent]