dioxin

1. (countable)The unsaturated six-membered heterocycle having four carbon atoms, two oxygen atoms, and two double bonds (molecular formula C₄H₄O₂); 1,2-dioxin and 1,4-dioxin.

2. (countable)The parent compound dibenzo-1,4-dioxin or dibenzo-p-dioxin (molecular formula C₁₂H₈O₂), in which two benzene rings are connected through two oxygen atoms; dibenzodioxin, oxanthrene.

3. (countable)Any of a broad range of toxic or carcinogenic halogenated polycyclic compounds that occur as byproducts of herbicides.

   Dioxin

   диоксинdioksin

   any of several toxic or carcinogenic hydrocarbons that occur as impurities in herbicides

4. Any of a broad range of toxic or carcinogenic halogenated polycyclic compounds that occur as byproducts of herbicides.

   (broadly, specifically, uncountable)The compound 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD; molecular formula C₁₂H₄Cl₄O₂), a persistent organic pollutant of the environment which is generally produced as a byproduct of organic synthesis or when organic materials are burned.

1. Even the mayor breathes dioxin.

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2. Dioxin is very dangerous.

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3. The decontamination will involve testing and gathering affected soil and heating it to high temperature to burn off leftover dioxin.

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