Chelate

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Chelate \Che"late\, a. (Zool.)
     Same as {Cheliferous}.
     [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:



  chelate \che"late\, n. (Chem.)
     a compound formed by combination of a metal ion in solution
     with a compound containing heteroatoms (such as oxygen or
     nitrogen), in which at least two heteroatoms are bound to the
     metal. The bonds may be covalent or non-covalent. Chelates in
     some cases have very low dissociation constants, and organic
     compounds ({chelating agents}) which form such chelates are
     therefore used to reduce the concentration of free metal ions
     in solution.
     [PJC]

From WordNet (r) 2.0 [wn]:

  chelate
       adj 1: relating to or characterized by chelation [syn: {chelated}]
       2: having or resembling chelae or claws
       n : a heterocyclic compound having a metal ion attached by
           coordinate bonds to at least two nonmetal ions [syn: {chelate
           compound}]
       v : form a chelate, in chemistry