valence

Definition of Valence in English :

Noun

1. valence, valency

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

valency

2. valence, valency

(chemistry) a property of atoms or radicals; their combining power given in terms of the number of hydrogen atoms (or the equivalent)

valency

WordNet Lexical Database for English. Princeton University. 2010.

Valence

see synonyms of valence

noun chemistry

1. another name (esp US and Canadian) for valency

2.

the phenomenon of forming chemical bonds

noun

a town in SE France, on the River Rhône. Pop: 64 260 (1999)

Valence

see synonyms of valence

city in SE France: pop. 63,000

noun Chemistry

1.

the capacity of an element or radical to combine with another to form molecules, as measured by the number of hydrogen or chlorine atoms which one radical or one atom of the element will combine with or replace (e.g.: oxygen has a valence of two, i.e., one atom of oxygen combines with two hydrogen atoms to form the water molecule, H2O)

2.

any of the units of valence which a particular element may have

Valence

see synonyms of valence

A city of southeast France on the Rhone River south of Lyon. Settled in Roman times, it was captured by the Visigoths in AD 413 and the Arabs c. 730.

n. pl. val·lenc·es also val·len·cies

1. Chemistry

a. The combining capacity of an atom or group of atoms as determined by the number of electrons it can lose, add, or share when it reacts with other atoms or groups. Also called oxidation state.

b. An integer used to represent this capacity, which may be given as positive or negative depending on whether electrons are lost or gained, respectively: The valences of copper are +1 and +2.

2. The number of binding sites of a molecule, such as an antibody or antigen.

3. The number of different antigens contained in a vaccine, corresponding to the number of pathogens that it is active against.

4. Psychology The degree of attraction or aversion that an individual feels toward a specific object or event.

5. Linguistics The number and type of arguments that a lexical item, especially a verb, can combine with to make a syntactically well-formed sentence, often along with a description of the categories of those constituents. Intransitive verbs (appear, arrive) have a valence of one—the subject; some transitive verbs (paint, touch), two—the subject and direct object; other transitive verbs (ask, give), three—the subject, direct object, and indirect object.

6. The capacity of something to unite, react, or interact with something else: "I do not claim to know much more about novels than the writing of them, but I cannot imagine one set in the breathing world which lacks any moral valence" (Robert Stone).

Valence

Noun

Valence

Valence

Valence

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