Medical Term:

pervaporation

Pronunciation: per′vap-ō-rā′shŭn

Definition: The heating of a liquid within a dialyzing bag suspended over a hot plate, evaporation taking place rapidly through the membrane; any colloids in solution remain within the bag while crystalloids diffuse out and crystallize on the outer surface of the bag (perstillation).

[L. per, through, + vapor, steam]

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