Definition of bond

1) There is a chemical bond between two atoms or groups of atoms in case that the forces acting between them are such as to lead to the formation of an aggregate with sufficient stability to make it convenient for the chemist to consider it as an independent "molecular species". In the context of this Glossary, the term refers usually to the covalent bond. PAULING (1967). See also agostic, coordination, hydrogen bond, multi-centre bond.