Definition of EDTA
: a white crystalline acid C10H16N2O8 that is widely used as a chelating and sequestering (see 1sequester 3) agent especially to inhibit the reactivity of metal ions ◆In addition to industrial and scientific applications, EDTA is used as a food additive to preserve foods and inhibit discoloration. It is also used in medicine especially in chelation therapy to treat lead poisoning. EDTA is typically used in the form of a salt (as the disodium salt C10H14N2O8Na2·2H2O or the calcium disodium salt C10H12N2O8Na2·3H2O).
Origin and Etymology of edta
First Known Use: 1951
Medical Definition of EDTA
: a white crystalline acid C10H16N2O8 used in medicine as an anticoagulant and as a chelator in the treatment of lead poisoning—called also ethylenediaminetetraacetic acid
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