|phylum comprised of annelids|
|cold-blooded vertebrate comprised of frogs and toads, newts and salamanders and caecilians|
|1.||chem a coordination compound in which a metal atom or ion is bound to a ligand at two or more points on the ligand, so as to form a heterocyclic ring containing a metal atom|
|2.||zoology of or possessing chelae|
|3.||chem of or denoting a chelate|
|4.||(intr) chem to form a chelate|
|[C20: from |
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.
|chelate (kē'lāt') Pronunciation Key
A chemical compound in the form of a ring that contains a metal ion attached by coordinate bonds to at least two nonmetal ions. Many commercial dyes as well as important biological substances, such as chlorophyll and the heme of hemoglobin, are chelates.