covalent bond

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Related to Unsaturated bond: Polar bond
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covalent bond
In a water molecule, each hydrogen atom (H) shares an electron (yellow) with the oxygen atom (O).

covalent bond

n.
A chemical bond formed by the sharing of one or more electrons, especially pairs of electrons, between atoms.

covalent bond

n
(Chemistry) a type of chemical bond involving the sharing of electrons between atoms in a molecule, esp the sharing of a pair of electrons by two adjacent atoms

cova′lent bond′


n.
the bond formed by the sharing of a pair of electrons by two atoms.
[1960–65]
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covalent bond
Covalent bonding as seen in a hydrogen chloride molecule. The hydrogen atom (H) shares an electron (yellow) with the chloride atom (Cl).

co·va·lent bond

(kō-vā′lənt)
A chemical bond formed when electrons are shared between two atoms. Usually each atom contributes one electron to form a pair of electrons that are shared by both atoms. See more at bond, coordinate bond, double bond, ionic bond.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.covalent bond - a chemical bond that involves sharing a pair of electrons between atoms in a molecule
bond, chemical bond - an electrical force linking atoms
double bond - a covalent bond in which two pairs of electrons are shared between two atoms
coordinate bond, dative bond - a covalent bond in which both electrons are provided by one of the atoms
Translations
enlace covalente
kovalenttinen sidos
liaison covalente
kovalent bağ
References in periodicals archive ?
The inner layer comprises a thermoplastic polyurethane resin material with at least one ethylenically unsaturated bond in its backbone, at least one pendent hydroxyl group, or a combination thereof, wherein an interfacial chemical bond is formed between at least one of an unreacted functional group of at least one light-stable aliphatic thermoplastic polyurethane and an unreacted functional group of at least one heat activated crosslinking monomer or agent of the outer layer and at least one of at least one ethylenically unsaturated bond and at least one pendent hydroxyl group of the inner layer.
The proton and hydride are then sequentially transferred to an unsaturated bond effecting hydrogenation or--more challenging, but thermochemically feasible--to an oxygen-carbon bond effecting hydrogenolysis.