Simple Definition of dialysis

from our Learner's Dictionary

dialysis

noun

medical : the process of removing some of a person's blood, cleaning it, and then returning it to the person's body
patients undergoing/receiving dialysis
a dialysis machine

Note: People usually receive dialysis when they have damaged kidneys.

Cite this Entry

“Dialysis.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/dialysis. Accessed 21 Jun. 2026.

More from Merriam-Webster on dialysis

More from Merriam-Webster