che·​la·​tor ˈkē-ˌlā-tər How to pronounce chelator (audio)
 also  ˈchē-ˌlā-tər,
: one that chelates
especially : a binding agent that suppresses chemical activity by forming chelates

Examples of chelator in a Sentence

Recent Examples on the Web Over the next several days, Buttar treated Desiree with IV chelation therapy, vitamin cocktails and a lotion chelator rubbed on her arms. Brandy Zadrozny, NBC News, 4 Aug. 2023 Share [Findings] Hemotoxic snakebite may be treatable with a heavy-metal chelator. Will Stephenson, Harper's Magazine, 21 June 2023 Doctors put her on a chelator, which filters out lead from the blood. Holly Bailey, Washington Post, 27 Mar. 2023 Other work had flagged another type of chelator that wasn’t toxic but didn’t do as good of a job removing uranium, especially from bones and the kidney. Lacy Schley, Discover Magazine, 27 June 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'chelator.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1957, in the meaning defined above

Time Traveler
The first known use of chelator was in 1957

Dictionary Entries Near chelator

Cite this Entry

“Chelator.” Dictionary, Merriam-Webster, Accessed 14 Jul. 2024.

Medical Definition


che·​la·​tor ˈkē-ˌlāt-ər How to pronounce chelator (audio)
: 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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