Dictionary

TCDD

noun \ˌtē-(ˌ)sē-(ˌ)dē-ˈdē\

Definition of TCDD

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

Origin of TCDD

tetra- + chlor- + dibenzo- (containing two benzene rings) + dioxin
First Known Use: 1971

TCDD

noun \ˌtē-ˌsē-ˌdē-ˈdē\   (Medical Dictionary)

Medical Definition of TCDD

:  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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April 27, 2015
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