dialysis: Meaning and Definition of

di•al•y•sis

Pronunciation: (dī-al'u-sis), [key]
— pl. -ses
  1. the separation of crystalloids from colloids in a solution by diffusion through a membrane.
  2. the separation of large molecules, as proteins, from small molecules and ions in a solution by allowing the latter to pass through a semipermeable membrane.
  3. (in kidney disease) the process by which uric acid and urea are removed from circulating blood by means of a dialyzer.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
dial-up dialytic
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