chelate che·late (kē'lāt')
A chemical compound in the form of a heterocyclic ring, containing a metal ion attached by coordinate bonds to at least two nonmetal ions. v. che·lat·ed, che·lat·ing, che·lates
To combine a metal ion with a chemical compound to form a ring.
To remove a heavy metal, such as lead or mercury, from the bloodstream by means of a chelate.