: a carcinogenic dioxin C12H4O2Cl4 found especially as a contaminant in 2,4,5-T

Word History

Etymology

tetra- + chlor- + dibenzo- (containing two benzene rings) + dioxin

First Known Use

1971, in the meaning defined above

Time Traveler
The first known use of TCDD was in 1971

Dictionary Entries Near TCDD

Cite this Entry

“TCDD.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/TCDD. Accessed 19 Jun. 2024.

Medical Definition

: a carcinogenic dioxin C12H4O2Cl4 found especially as a contaminant in 2,4,5-T

called also 2,3,7,8-tetrachlorodibenzo-para-dioxin, 2,3,7,8-tetrachlorodibenzo-p-dioxin

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