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dioxin

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.06 sec.

dioxin

Aromatic compound, any of a group of contaminants produced in making herbicides (e.g., Agent Orange), disinfectants, and other agents. Their basic chemical structure consists of two benzene rings connected by a pair of oxygen atoms; when substituents on the rings are chlorine atoms, the molecules are particularly toxic. The best-known, usually called simply dioxin, is 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD). It is extremely stable chemically; it does not dissolve in water but dissolves in oils (and thus accumulates in body fat). The extent of its human toxicity is disputed and the subject of continuing research.



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Dioxins and furans are among the most toxic substances known.
The Times Beach dioxin affair was unprecedented and unnecessary.
Thus, consistent results relating to the influence of background-level dioxin exposure on children's development have not been obtained.
 
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