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.|
See also: Occlusion
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.