Removal of nitrogenous waste and toxins from the body in place of or to augment the kidney
Kidney dialysis (from Greek,, 'dissolution'; from,, 'through', and,, 'loosening or splitting') is the process of removing excess water, solutes, and toxins from the blood in people whose kidneys can no longer perform these functions naturally. This is referred to as renal replacement therapy. The first successful dialysis was performed in 1943. Wikipedia