atmolyses

atmolysis

[at-mol-uh-sis]
noun, plural atmolyses [at-mol-uh-seez] .
a process for separating gases or vapors of different molecular weights by transmission through a porous substance.

Origin:
1865–70; atmo- + -lysis

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World English Dictionary
atmolysis (ætˈmɒlɪsɪs)
 
n , pl -ses
a method of separating gases that depends on their differential rates of diffusion through a porous substance

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