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noun, Chemistry.
the bond formed by the sharing of a pair of electrons by two atoms.
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

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

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 coordinate bond, double bond, polar bond.

covalent bond [(koh-vay-luhnt)]

A chemical bond in which two atoms share some of their valence electrons, thereby creating a force that holds the atoms together.

Note: Many molecules in living systems are held together by covalent bonds.


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