valency Meaning, Definition & Usage

  1. noun the phenomenon of forming chemical bonds
  2. noun (biology) a relative capacity to unite or react or interact as with antigens or a biological substrate
    valence.
  3. noun (chemistry) a property of atoms or radicals; their combining power given in terms of the number of hydrogen atoms (or the equivalent)
    valence.

WordNet

Val"en*cy noun
Wordforms
plural Valencies
Definitions
  1. (Chem.) (a) See Valence. (b) A unit of combining power; a so-called bond of affinity.

Webster 1913