1910–1911
Britannica 11th
Encyclopaedia Britannica · 11th edition
ATMOLYSIS (Gr. dr/ufo, vapour; \veiv, to loosen), a term invented by Thomas Graham to denote the separation of a mixture of gases by taking advantage of their different rates of diffusion through a porous septum or diaph'ragm (see DIFFUSION) .
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- Vol. 2, pp. 860-860