dialysis

noun

1. (countable, uncountable)A method of separating molecules or particles of different sizes by differential diffusion through a semipermeable membrane.
2. (countable, uncountable)The use of this method for the removal of waste products from the blood in the case of kidney failure: hemodialysis or peritoneal dialysis.

   “An artificial kidney these days still means a refrigerator-sized dialysis machine. Such devices mimic the way real kidneys cleanse blood and eject impurities and surplus water as urine.”

3. (countable, rhetoric, uncountable)The spelling out of alternatives, or presenting of either-or arguments that lead to a conclusion.
4. (countable, rhetoric, uncountable)asyndeton.