Co‐he″sion (?), n. [Cf. F. cohésion. See Cohere.] 1. The act or state of sticking together; close union.
2. (Physics) That from of attraction by which the particles of a body are united throughout the mass, whether like or unlike; — distinguished from adhesion, which unites bodies by their adjacent surfaces.
Solids and fluids differ in the degree of cohesion, which, being increased, turns a fluid into a solid.
Arbuthnot.
3. Logical agreement and dependence; as, the cohesion of ideas. Locke.