Ad-hē’sion, n.

(ad-hē’zhun), n. [Fr. adhésion, N. Lat. adhæsio, from adhærere. See ADHERE.]

1. The act or state of sticking, or being attached; the force with which distinct bodies adhere when their surfaces are brought in contact; as, the adhesion of glue, or of parts united by growth, cement, and the like, or of parts pressed together, as a locomotive driving wheel and the rail. Nichol.
2. Adherence, union, or steady attachment; firmness in opinion; as, an adhesion to vice.

His adhesion to the Tories was bounded by his approbation of their foreign policy. De Quincey. 3. (Bot.) The union of parts which are separate in other plants, or in younger states of the same plant. Eng. Cyc. Syn.—Adherence; union. See ADHERENCE.