Definition of chelation therapy
: the use of a chelator (such as EDTA) to bind with a metal (such as lead or iron) in the body to form a chelate so that the metal loses its chemical effect (such as toxicity or physiological activity)
Keep scrolling for more
Keep scrolling for more
Test Your Vocabulary
Slippery Words Quiz—Changing with the Times
- What is an earlier meaning of nice?

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
Spell words. Make bears.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
Share chelation therapy
Time Traveler for chelation therapy
The first known use of chelation therapy was in 1960
See more words from the same year