dialysis

Cultural Dictionary
dialysis [(deye-al-uh-sis)]

The separation of large molecules from small molecules by passage through a membrane.

Note: A common treatment for kidney disease is the use of a dialysis machine to filter toxic substances from the blood, a function that the kidneys normally perform.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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