Definition of Valence

1. Noun. (biology) a relative capacity to unite or react or interact as with antigens or a biological substrate.

Exact synonyms: Valency
Generic synonyms: Power, Powerfulness
Category relationships: Biological Science, Biology
Attributes: Univalent, Bivalent, Double, Multivalent, Monovalent, Polyvalent

2. Noun. (chemistry) a property of atoms or radicals; their combining power given in terms of the number of hydrogen atoms (or the equivalent).
Exact synonyms: Valency
Specialized synonyms: Covalence, Covalency
Generic synonyms: Power, Powerfulness
Category relationships: Chemical Science, Chemistry
Attributes: Monovalent, Univalent, Multivalent, Polyvalent
Derivative terms: Valent

Definition of Valence

1. n. 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.

2. n. 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.

Definition of Valence

1. the degree of combining power of an element or radical [n -S]

Medical Definition of Valence

1. The number of binding sites on a molecule. A number which reflects an element's ability to combine with other elements The number of antigen binding sites an antibody has, or the number of antigenic determinants an antigen has (09 Oct 1997)

Lexicographical Neighbors of Valence

valances
valance board
valancing
Valdez
Valdosta
vale
valediction
valedictions
valedictorian
valedictorians
valedictories
valedictory
valedictory address
valedictory speaker
valence (current term)
valence (current term)
valences
valence electron
valence electron
Valencia
valencias
Valencia orange
valencies
valency
valency
valent
Valentin
Valentin's corpuscles
Valentin's ganglion
Valentin's nerve

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