| chelate | 1. To effect chelation. 2. Pertaining to chelation. 3. A complex formed through chelation. (05 Mar 2000) |
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| chelation | <biochemistry, chemistry> Combination with a metal in complexes in which the metal is part of a ring. (21 May 1997) |
| chelation therapy | Therapy of heavy metal poisoning using agents which sequester the metal from organs or tissues and bind it firmly within the ring structure of a new compound which can be eliminated from the body. (12 Dec 1998) |