资料来源 : Webster's Revised Unabridged Dictionary (1913)

Dialysis \Di*al"y*sis\, n.; pl. {Dialyses}. [L., separation, fr.
   Gr. ?, fr. ? to part asunder, dissolve; dia` through + ? to
   loose.]
   1. (Gram.) Di[ae]resis. See {Di[ae]resis}, 1.

   2. (Rhet.) Same as {Asyndeton}.

   3. (Med.)
      (a) Debility.
      (b) A solution of continuity; division; separation of
          parts.

   4. (Chem.) The separation of different substances in
      solution, as crystalloids and colloids, by means of their
      unequal diffusion, especially through natural or
      artificial membranes.

资料来源 : WordNet®

dialysis
     n : separation of substances in solution by means of their
         unequal diffusion through semipermeable membranes
     [also: {dialyses} (pl)]

dialyses
     See {dialysis}