Growing together of members of different and distinct whorls.

Any mutually attractive force holding together two magnetic bodies, or two oppositely charged nonconducting bodies.

Intimate sticking together of metal surfaces under compressive stresses by formation of metallic bonds.

The force of static friction between two bodies, or the effects of this force.

The abnormal union of an organ or part with some other part by formation of fibrous tissue.

The tendency, due to intermolecular forces, for matter to cling to other matter.