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Noun: valence  vey-lun(t)s
  1. (biology) a relative capacity to unite or react or interact as with antigens or a biological substrate
    - valency
     
  2. (chemistry) a property of atoms or radicals; their combining power given in terms of the number of hydrogen atoms (or the equivalent)
    - valency

Derived forms: valences

See also: bivalent, double, monovalent, multivalent, polyvalent, univalent

Type of: power, powerfulness

Encyclopedia: Valence, Drôme