в зависимости от контекста

См.:
Molecular Interactions are attractive or repulsive forces between molecules and between non-bonded atoms. Molecular interactions are important in diverse fields of protein folding, drug design, material science, sensors, nanotechnology, separations, and origin of life. Molecular interactions are also known as noncovalent interactions or intermolecular interactions. Molecular interactions are not bonds.

Bonds hold atoms together within molecules. A molecule a set of atoms that associates tightly enough that it does not dissociate or lose its structure when it interacts with its environment. At room temperature two nitrogen atoms form a bond. Two argon atoms do not. Bond enthalpies are on the order of 100 kcal/mole (400 kjoule/mole). Bonds break and form during chemical reactions. In the chemical reaction called fire, bonds of sugar break while bonds of carbon dioxide and water form.
http://ww2.chemistry.gatech.edu/~lw26/structure/molecular_in...