Dictionary

chelator

noun che·la·tor \kē-ˈlā-tər also chē-\

Definition of CHELATOR

:  one that chelates; especially :  a binding agent that suppresses chemical activity by forming chelates
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First Known Use of CHELATOR

1957
Medical Dictionary

chelator

noun che·la·tor \ˈkē-ˌlāt-ər\

Medical Definition of CHELATOR

:  any of various compounds that combine with metals to form chelates and that include some used medically in the treatment of metal poisoning (as by lead)

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