- 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.
Origin of dialysis
Examples from the Web for dialysis
The result can be total kidney failure and the need for dialysis; for some people, the kidney failure is permanent.Cool It on the CrossFit: What’s Rhabdomyolysis?
October 11, 2013
Kidney disease, formerly a major cause of death, has basically dropped out of the chart thanks to the invention of dialysis.Has Medical Innovation Slowed Down?
May 8, 2013
The first and still the best example is dialysis, which costs more than $40,000 a year.A Doctor’s View of the Supreme Court’s Health-Care Ruling
June 28, 2012
He waged war on the modern with a Siemens dialysis machine in-tow, bankrolled by Aramco petrodollars.Osama bin Laden Died a Fool and Has No Legacy
May 6, 2011
Although the Al Qaeda chief was said to require dialysis for kidney disorders, no dialysis machines were found at the house.Day 4: Breaking News on Osama bin Laden's Death
The Daily Beast
May 5, 2011
Dialysis has also been recently applied in the separation of alkaloids.Legal Chemistry
This body is soluble in water, and consequently is not precipitated by dialysis.On Digestive Proteolysis
R. H. Chittenden
The disjunction or dialysis of the carpels, for instance, frequently renders axile placentation marginal.Vegetable Teratology
Maxwell T. Masters
Hence we can easily separate by dialysis two bodies of different groups which are mixed in a solution.The Wonders of Life
Dialysis, the process by means of which a crystalline substance may be separated from a colloidal body.The New Gresham Encyclopedia
Word Origin and History for dialysis
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.
- 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
- 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.
The separation of large molecules from small molecules by passage through a membrane.