From Planet X
1. Having chelae or resembling a chela. 2. A chemical compound in the form of a heterocyclic ring, containing a metal ion attached by coordinate bonds to at least two nonmetal ions. 3. To combine (a metal ion) with a chemical compound to form a ring. 4. To remove (a heavy metal, such as lead or mercury) from the bloodstream by means of a chelate, such as EDTA.