Co*he"sion (?), n. [Cf. F. coh'esion. 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.
© Webster 1913.