ADHE'SION, n. adhe'shun. [L. adhasio.]

1. The act or state of sticking, or being united and attached to; as the adhesion of glue, or of parts united by growth, cement, and the like. Adhesion is generally used in a literal; adherence, in a metaphorical sense.

2. Sometimes figuratively, adherence, union or steady attachment; firmness in opinion; as, an adhesion to vice: but in this sense nearly obsolete. The union of bodies by attraction is usually denominated cohesion.