valence

[ vey-luhns ]

/ ˈveɪ ləns /

SEE SYNONYMS FOR valence ON THESAURUS.COM

noun

Also va·len·cy

[vey-luhn-see] /ˈveɪ lən si/ .Chemistry.

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. The chloride ion, Cl–, with a valence of one, has the capacity to unite with one atom of hydrogen or its equivalent, as in HCl or NaCl.

Immunology. the number of determinants per molecule of antigen.

the capacity of one person or thing to react with or affect another in some special way, as by attraction or the facilitation of a function or activity.

Origin of valence

First recorded in 1865–70; from Latin valentia “strength, worth,” equivalent to present participle valent- (stem of valēns ) “to be strong” + -ia noun suffix; see -ence

WORDS THAT MAY BE CONFUSED WITH valence

valance, valence

Words nearby valence

Valdosta, vale, valediction, valedictorian, valedictory, valence, valence band, valence-conduction band, valence electron, valence electrons, Valencia

Definition for valence (2 of 2)

Valence

[ va-lahns ]

/ vaˈlɑ̃s /

noun

a city in and the capital of Drôme, in SE France.

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for valence

Napoleon soon, exulting in his new commission, repaired to Valence to join his regiment.
Harper's New Monthly Magazine, Vol. 3, No. 15, August, 1851|Various
But Valence will beat you, child; he is four times as strong as you.
The Companions of Jehu|Alexandre Dumas, pre
Re-embarking at four P. M., we reach Valence in about four hours.
From the Oak to the Olive|Julia Ward Howe
By the time we reach Valence, soon after mid-day, we have passed one barge only.
The Roof of France|Matilda Betham-Edwards

I was half-way to Valence when I discovered this breach of etiquette.
The Companions of Jehu|Alexandre Dumas, pre

British Dictionary definitions for valence (1 of 2)

valence

/ (ˈveɪləns) /

noun chem

another name (esp US and Canadian) for valency

the phenomenon of forming chemical bonds

British Dictionary definitions for valence (2 of 2)

Valence

/ (French valɑ̃s) /

noun

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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cultural definitions for valence

valence

[ (vay-luhns) ]

A number characterizing an atom, equal to the number of valence electrons.

Medical definitions for valence

valence

[ vā′ləns ]

n.

The combining capacity of an atom or radical that is determined by the number of electrons that it will lose, add, or share when it reacts with other atoms.

A positive or negative integer used to represent this capacity.

The number of components of an antigen molecule to which an antibody molecule can bind.

The attraction or aversion that an individual feels toward a specific object or event.

Scientific definitions for valence

valence

[ vā′ləns ]

A whole number that represents the ability of an atom or a group of atoms to combine with other atoms or groups of atoms. The valence is determined by the number of electrons that an atom can lose, add, or share. An atom's valence is positive if its own electrons are used in forming the bond, or negative if another atom's electrons are used. For example, a carbon atom can share four of its electrons with other atoms and therefore has a valence of +4. A sodium atom can receive an electron from another atom and therefore has a valence of -1. (In this book the distinction between positive and negative valences is ignored unless it is relevant.) The valence of an atom generally indicates how many chemical bonds it is capable of forming with other atoms. Also called valence number oxidation state

单词	valence
释义	valence [ vey-luhns ] / ˈveɪ ləns / SEE SYNONYMS FOR valence ON THESAURUS.COM noun Also va·len·cy [vey-luhn-see] /ˈveɪ lən si/ .Chemistry. 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. The chloride ion, Cl–, with a valence of one, has the capacity to unite with one atom of hydrogen or its equivalent, as in HCl or NaCl. Immunology. the number of determinants per molecule of antigen. the capacity of one person or thing to react with or affect another in some special way, as by attraction or the facilitation of a function or activity. Origin of valence First recorded in 1865–70; from Latin valentia “strength, worth,” equivalent to present participle valent- (stem of valēns ) “to be strong” + -ia noun suffix; see -ence WORDS THAT MAY BE CONFUSED WITH valence valance, valence Words nearby valence Valdosta, vale, valediction, valedictorian, valedictory, valence, valence band, valence-conduction band, valence electron, valence electrons, Valencia Definition for valence (2 of 2) Valence [ va-lahns ] / vaˈlɑ̃s / noun a city in and the capital of Drôme, in SE France. Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for valence Napoleon soon, exulting in his new commission, repaired to Valence to join his regiment. Harper's New Monthly Magazine, Vol. 3, No. 15, August, 1851\|Various But Valence will beat you, child; he is four times as strong as you. The Companions of Jehu\|Alexandre Dumas, pre Re-embarking at four P. M., we reach Valence in about four hours. From the Oak to the Olive\|Julia Ward Howe By the time we reach Valence, soon after mid-day, we have passed one barge only. The Roof of France\|Matilda Betham-Edwards I was half-way to Valence when I discovered this breach of etiquette. The Companions of Jehu\|Alexandre Dumas, pre British Dictionary definitions for valence (1 of 2) valence / (ˈveɪləns) / noun chem another name (esp US and Canadian) for valency the phenomenon of forming chemical bonds British Dictionary definitions for valence (2 of 2) Valence / (French valɑ̃s) / noun a town in SE France, on the River Rhône. Pop: 64 260 (1999) Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to valence demeanor, behavior, carriage, bearing, conduct, deportment, disposition, mien, poise, presence, power, attitude Cultural definitions for valence valence [ (vay-luhns) ] A number characterizing an atom, equal to the number of valence electrons. The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Medical definitions for valence valence [ vā′ləns ] n. The combining capacity of an atom or radical that is determined by the number of electrons that it will lose, add, or share when it reacts with other atoms. A positive or negative integer used to represent this capacity. The number of components of an antigen molecule to which an antibody molecule can bind. The attraction or aversion that an individual feels toward a specific object or event. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for valence valence [ vā′ləns ] A whole number that represents the ability of an atom or a group of atoms to combine with other atoms or groups of atoms. The valence is determined by the number of electrons that an atom can lose, add, or share. An atom's valence is positive if its own electrons are used in forming the bond, or negative if another atom's electrons are used. For example, a carbon atom can share four of its electrons with other atoms and therefore has a valence of +4. A sodium atom can receive an electron from another atom and therefore has a valence of -1. (In this book the distinction between positive and negative valences is ignored unless it is relevant.) The valence of an atom generally indicates how many chemical bonds it is capable of forming with other atoms. Also called valence number oxidation state The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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valence

noun

Origin of valence

WORDS THAT MAY BE CONFUSED WITH valence

Words nearby valence

Definition for valence (2 of 2)

noun

Example sentences from the Web for valence

British Dictionary definitions for valence (1 of 2)

noun chem

British Dictionary definitions for valence (2 of 2)

noun

Words related to valence

Cultural definitions for valence

Medical definitions for valence

n.

Scientific definitions for valence