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Pronunciation: (kē-lā'shun), [key]
1. Chem.the process of chelating.
2. Med.
a. a method of removing certain heavy metals from the bloodstream, used esp. in treating lead or mercury poisoning.
b. a controversial treatment for arteriosclerosis that attempts to remove calcium deposits from the inner walls of the coronary arteries.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

chelating agentcheli-
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