Definitions for valenceˈveɪ ləns
Random House Webster's College Dictionary
va•lenceˈveɪ ləns(n.)
also valency
the quality that determines the number of atoms or groups with which any single atom or group will unite chemically. the relative combining capacity of an atom or group compared with that of the standard hydrogen atom.
Category: Chemistry
the number of binding sites on a molecule, as an antibody or antigen.
Category: Genetics, Biochemistry
Origin of valence:
1865–70; < L valentia strength, worth =valent-, s. of valēns, prp. of valēre to be strong +-ia n. suffix; see -ence
Va•lencevæˈlɑ̃s(n.)
a city in SE France. 70,307.
Category: Geography (places)
Princeton's WordNet
valence, valency(noun)
(biology) a relative capacity to unite or react or interact as with antigens or a biological substrate
valence, valency(noun)
(chemistry) a property of atoms or radicals; their combining power given in terms of the number of hydrogen atoms (or the equivalent)
Webster Dictionary
Valence(noun)
the degree of combining power of an atom (or radical) as shown by the number of atoms of hydrogen (or of other monads, as chlorine, sodium, etc.) with which it will combine, or for which it can be substituted, or with which it can be compared; thus, an atom of hydrogen is a monad, and has a valence of one; the atoms of oxygen, nitrogen, and carbon are respectively dyads, triads, and tetrads, and have a valence respectively of two, three, and four
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