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Longman Dictionary of Contemporary English
▪ Patients deteriorating to the point when renal dialysis is considered should be withdrawn from the transplant list.
▪ Fresenius' renal unit manufactures dialysis equipment.
▪ As his condition deteriorated he was sent to hospital where he is now being treated on a kidney dialysis machine.
▪ Union Carbide dropped development of a suitcase-size kidney dialysis unit.
▪ Make your own kidney dialysis machine using an old cereal packet, some Sellotape and a used toilet roll.
▪ Medicare pays $ X for each kidney dialysis, $ Y for a double heart bypass.
▪ He spent three hours, three times a week on a kidney dialysis machine.
▪ Spinning or selling of its kidney dialysis unit c. Anheuser-Busch Cos. 3.
▪ As his condition deteriorated he was sent to hospital where he is now being treated on a kidney dialysis machine.
▪ His Ed Blackwell playing activity was restricted through kidney disease, which required regular use of a dialysis machine far many years.
▪ Make your own kidney dialysis machine using an old cereal packet, some Sellotape and a used toilet roll.
▪ He had to spend fifteen hours a week on a dialysis machine.
▪ She therefore has to use a dialysis machine approximately three times a week.
▪ Now the dialysis machine is about to be taken back to the hospital and Richard is hoping for a healthy future.
▪ A transplanted kidney failed her a year later; she has been on dialysis three times a week ever since.
▪ July 1993 -- Erma goes on dialysis after her kidneys stop functioning.
▪ Removal of water salts from fine sediments is best achieved using dialysis.
▪ She was treated with dialysis and then had a renal transplant, jumping ahead of patients on the waiting list.
▪ Stoma care and continuous ambulatory peritoneal dialysis are examples of this.
▪ The dialysis technique sampled this area.
▪ The alternatives are then dialysis with a low-bicarbonate or acetate dialysate, or treatment with hydrochloric acid.
▪ Union Carbide dropped development of a suitcase-size kidney dialysis unit.
The Collaborative International Dictionary

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.)

    1. Debility.

    2. 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.

Douglas Harper's Etymology Dictionary

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.


n. 1 (context chemistry English) A method of separating molecules or particles of different sizes by differential diffusion through a semipermeable membrane. 2 (context medicine English) haemodialysis.

  1. n. separation of substances in solution by means of their unequal diffusion through semipermeable membranes

  2. [also: dialyses (pl)]


In medicine, '''dialysis ''' (from Greek διάλυσις, diàlysis, meaning dissolution, διά, dià, meaning through, and λύσις, lỳsis, meaning loosening or splitting) is a process for removing waste and excess water from the blood and is used primarily as an artificial replacement for lost kidney function in people with kidney failure. Dialysis may be used for those with an acute disturbance in kidney function ( acute kidney injury, previously acute renal failure) or progressive but chronically worsening kidney function—a state known as chronic kidney disease stage 5 (previously chronic renal failure or end-stage renal disease). The latter form may develop over months or years, but in contrast to acute kidney injury is not usually reversible and dialysis is regarded as a "holding measure" until a kidney transplant can be performed or sometimes as the only supportive measure in those for whom a transplant would be inappropriate.

The kidneys have an important role in maintaining health. When healthy, the kidneys maintain the body's internal equilibrium of water and minerals (sodium, potassium, chloride, calcium, phosphorus, magnesium, sulfate). The acidic metabolism end-products that the body cannot get rid of via respiration are also excreted through the kidneys. The kidneys also function as a part of the endocrine system, producing erythropoietin, calcitriol and renin. Erythropoietin is involved in the production of red blood cells and calcitriol plays a role in bone formation. Dialysis is an imperfect treatment to replace kidney function because it does not correct the compromised endocrine functions of the kidney. Dialysis treatments replace some of these functions through diffusion (waste removal) and ultrafiltration (fluid removal).

Dialysis (biochemistry)

In biochemistry, dialysis is the process of separating molecules in solution by the difference in their rates of diffusion through a semipermeable membrane, such as dialysis tubing.

Dialysis is a common laboratory technique that operates on the same principle as medical dialysis. In the context of life science research, the most common application of dialysis is for the removal of unwanted small molecules such as salts, reducing agents, or dyes from larger macromolecules such as proteins, DNA, or polysaccharides. Dialysis is also commonly used for buffer exchange and drug binding studies.

Usage examples of "dialysis".

Given the stress of the dementia work-up, every organ system crumpled: in a domino progression the injection of radioactive dye for her brain scan shut down her kidneys, and the dye study of her kidneys overloaded her heart, and the medication for her heart made her vomit, which altered her electrolyte balance in a life-threatening way, which increased her dementia and shut down her bowel, which made her eligible for the bowel run, the cleanout for which dehydrated her and really shut down her tormented kidneys, which led to infection, the need for dialysis, and big-time complications of these big-time diseases.

Here are proper conditions for osmosis, and this process of dialysis will take place whenever the intestinal contents holds more dialyzable material than the blood.

To stabilize a patient with kidney disease who is on renal dialysis, the doctors may impose fluid restrictions so strict that patients end up begging for an ice cube in the middle of the night.

Probably they were spent in routine travel, dialyses, and pauses between significant events, and my mind has simply telescoped the material to leave only the salient matters.

The dialysis machine is portable and an IV drip can replace the nutrient pump for a few days.

I'we organised a dialysis machine at Albury, but she won't hear of it.

Simultaneously, he was hooked up to a dialysis machine and given a blood transfusion.

By the time he was on a dialysis machine the courts had decided that the previous ruling on George's medical care still held.

The computerized infusion system purred on, managing oxygenation and dialysis and maintaining the boy's electrolyte balance.

A wheelchair-bound dialysis patient in Pinellas County found his house safe missing after gypsies "worked" on his roof.