occlusion of gases

1 definition found

occlusion of gases - Collaborative International Dictionary of English v.0.48 :

  Occlusion \Oc*clu"sion\, n. [See Occlude.]
     1. The act of occluding, or the state of being occluded.
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              Constriction and occlusion of the orifice. --Howell.
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     2. (Med.) The transient approximation of the edges of a
        natural opening; imperforation. --Dunglison.
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     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.
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