TCDD

noun

ˌtē-(ˌ)sē-(ˌ)dē-ˈdē 

: 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

Medical Definition

TCDD

noun

ˌtē-ˌsē-ˌdē-ˈdē 

: 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