chelate

Etymology
From.

Adjective

 * 1)  having chelae, or in the form of a chela 1
 * 2)  relating to chelation 1

Noun

 * 1)  A chelate compound.

Verb

 * 1)  to form a chelate compound by combining a metal atom to form a ring
 * 2)  to remove heavy metals from the bloodstream using a chelate (such as EDTA)