Hypertext Webster Gateway: "valency"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Valency \Val"en*cy\, n.; pl. {Valencies}. (Chem.)
(a) See {Valence}.
(b) A unit of combining power; a so-called bond of affinity.
From WordNet (r) 1.7 (wn)
valency
n 1: the phenomenon of forming chemical bonds
2: (biology) a relative capacity to unite or react or interact
as with antigens or a biological substrate [syn: {valence}]
3: (chemistry) a property of atoms or radicals; their combining
power given in terms of the number of hydrogen atoms (or
the equivalent) [syn: {valence}]
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