dialysis
[dahy-al-uh-sis]
- Physical Chemistry. the separation of crystalloids from colloids in a solution by diffusion through a membrane.
- 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.
- Medicine/Medical. (in kidney disease) the process by which uric acid and urea are removed from circulating blood by means of a dialyzer.
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Origin of dialysis
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for dialysis
Contemporary Examples
The result can be total kidney failure and the need for dialysis; for some people, the kidney failure is permanent.
Kidney disease, formerly a major cause of death, has basically dropped out of the chart thanks to the invention of dialysis.
The first and still the best example is dialysis, which costs more than $40,000 a year.
He waged war on the modern with a Siemens dialysis machine in-tow, bankrolled by Aramco petrodollars.
Although the Al Qaeda chief was said to require dialysis for kidney disorders, no dialysis machines were found at the house.
Historical Examples
Dialysis has also been recently applied in the separation of alkaloids.
Legal ChemistryA. Naquet
This body is soluble in water, and consequently is not precipitated by dialysis.
On Digestive ProteolysisR. H. Chittenden
The disjunction or dialysis of the carpels, for instance, frequently renders axile placentation marginal.
Vegetable TeratologyMaxwell T. Masters
Hence we can easily separate by dialysis two bodies of different groups which are mixed in a solution.
The Wonders of LifeErnst Haeckel
Dialysis, the process by means of which a crystalline substance may be separated from a colloidal body.
The New Gresham EncyclopediaVarious
dialysis
- the separation of small molecules from large molecules and colloids in a solution by the selective diffusion of the small molecules through a semipermeable membrane
- med See haemodialysis, peritoneal dialysis
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Word Origin
C16: from Late Latin: a separation, from Greek dialusis a dissolution, from dialuein to tear apart, dissolve, from luein to loosen
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for dialysis
n.
1580s, from Latin, from Greek dialysis "dissolution, separation" (of the disbanding of troops, a divorce, etc.), from dialyein "dissolve, separate," from dia- "apart" + lyein "loosen" (see lose). Used originally in logic and grammar; chemistry sense is first recorded 1861, medicine 1914. Related: Dialytic.
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Online Etymology Dictionary, © 2010 Douglas Harper
dialysis
(dī-ăl′ĭ-sĭs)- 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.diffusion
- Hemodialysis.
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The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
dialysis
[dī-ăl′ĭ-sĭs]
- 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.
- 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.
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The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
dialysis
[(deye-al-uh-sis)]
The separation of large molecules from small molecules by passage through a membrane.
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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 New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.