GNU Collaborative International Dictionary of English
last match results
Found one definition
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chelation n. the process of removing a heavy metal from a solution by means of a chelate; as (Med.) the treatment of lead or mercury poisoning by adding a chelating agent to the blood.
[WordNet 1.5 +PJC]
2. the process of forming a ring by forming one or more hydrogen bonds.
[WordNet 1.5]