| the bond formed by the sharing of a pair of electrons by two atoms. |

| covalent bond n. A chemical bond formed by the sharing of one or more electrons, especially pairs of electrons, between atoms. |
covalent bond n.
A chemical bond formed by the sharing of one or more electrons, especially pairs of electrons, between atoms.
covalent bond (kō-vā'lənt) Pronunciation Key
(click for larger image in new window) 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. |