Oc‐clu″sion (?), n. [See Occlude.] 1. The act of occluding, or the state of being occluded.
Constriction and occlusion of the orifice. Howell.
2. (Med.) The transient approximation of the edges of a natural opening; imperforation. Dunglison.
Occlusion of gases(Chem. & Physics), the phenomenon of absorbing gases, as exhibited by platinum, palladium, iron, or charcoal; thus, palladium absorbs, or occludes, nearly a thousand times its own volume of hydrogen, and in this case a chemical compound seems to be formed.