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8 dictionary results for: Dialysis
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
di·al·y·sis       [dahy-al-uh-sis] Pronunciation Key
–noun, plural -ses       [-seez] Pronunciation Key.
1.Physical Chemistry. the separation of crystalloids from colloids in a solution by diffusion through a membrane.
2.Biochemistry. 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.Medicine/Medical. (in kidney disease) the process by which uric acid and urea are removed from circulating blood by means of a dialyzer.
[Origin: 1580–90; < LL < Gk diálysis a separation. See dia-, -lysis]
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
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American Heritage Dictionary - Cite This Source - Share This
di·al·y·sis       (dī-āl'ĭ-sĭs)  Pronunciation Key 
n.   pl. di·al·y·ses (-sēz')
  1. The separation of smaller molecules from larger molecules or of dissolved substances from colloidal particles in a solution by selective diffusion through a semipermeable membrane.
  2. Hemodialysis.


[Greek dialusis, separating, dissolution, from dialūein, to break up, dissolve : dia-, apart; see dia- + lūein, to loosen; see leu- in Indo-European roots.]

di'a·lyt'ic (-ə-lĭt'ĭk) adj., di'a·lyt'i·cal·ly adv.
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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Online Etymology Dictionary - Cite This Source - Share This
dialysis 
1586, from Gk. dialysis "dissolution, separation," from dialyein "dissolve, separate," from dia- "apart" + lyein "loosen." Used originally in logic and grammar; chemistry sense is first recorded 1861, medicine 1914.

Online Etymology Dictionary, © 2001 Douglas Harper
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WordNet - Cite This Source - Share This
dialysis

noun
separation of substances in solution by means of their unequal diffusion through semipermeable membranes 

WordNet® 3.0, © 2006 by Princeton University.
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The American Heritage Science Dictionary - Cite This Source - Share This
dialysis       (dī-āl'ĭ-sĭs)  Pronunciation Key 
  1. The separation of the smaller molecules in a solution from the larger molecules by passing the solution through a membrane that does not allow the large molecules to pass through.
  2. A medical procedure in which this technique of molecular separation is used to remove metabolic waste products or toxic substances from the blood. Dialysis is required for individuals with severe kidney failure.

The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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American Heritage New Dictionary of Cultural Literacy, Third Edition - Cite This Source - Share This
dialysis [(deye-al-uh-sis)]

The separation of large molecules from small molecules by passage through a membrane.

Note: A common treatment for kidney disease is the use of a dialysis machine to filter toxic substances from the blood, a function that the kidneys normally perform.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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American Heritage Stedman's Medical Dictionary - Cite This Source - Share This

dialysis di·al·y·sis (dī-āl'ĭ-sĭs)
n. pl. di·al·y·ses (-sēz')

  1. The separation of smaller molecules from larger molecules or of dissolved substances from colloidal particles in a solution by selective diffusion through a semipermeable membrane. Also called diffusion.
  2. Hemodialysis.
di'a·lyt'ic (-ə-lĭt'ĭk) adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Webster's Revised Unabridged Dictionary - Cite This Source - Share This

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.

Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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Dialysis from the convenience of your home-Learn about your options!
www.Davita.com/Home
What is dialysis
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