Hypertext Webster Gateway: "Dialysis"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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.
From WordNet (r) 1.7 (wn)
dialysis
n : separation of substances in solution my means of their
unequal diffusion through semipermeable membranes
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