mul·tiv·a·lence /ˌmʌlˈtɪvələn(t)s/
  多原子價,多價,有多種意義性
  Mul·tiv·a·lence n. Chem. Quality, state, or degree, of a multivalent element, atom, or radical.
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  multivalence
       n : the state of being polyvalent [syn: polyvalence, polyvalency,
            multivalency]