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chelation
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   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
Chelation
The process by which a molecule encircles and binds to a metal and removes it from tissue.
Mentioned in: Heavy Metal Poisoning

chelation
[kēlā′shən]
a chemical reaction in which there is a combination with a metal to form a ring-shaped molecular complex in which the metal is firmly bound and isolated. See also chelating agent.

chelation (kē·lāˑ·shn),
n 1. medical treatment in which heavy metals are flushed from the bloodstream by means of a chelator that binds metal ions; used in cases of mercury or lead poisoning.
2. the process of ring formation by forming one or more hydrogen bonds.

chelation (kēlā´shn),
n chemical reaction of a metallic ion (e.g., calcium ion) with a suitable reactive compound (e.g., ethylenediamine tetra-acetic acid) to form a compound in which the metal ion is tightly bound.
chelation therapy,
n the use of a chelating agent to bind firmly and sequester metallic poisons.


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