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noun
ChemistryAn organochlorine insecticide of similar chemical structure to DDT, but with lower toxicity and persistence in the environment; 1,1,1-trichloro-2,2-bis(p -methoxyphenyl)ethane, (C₆ H₄ OCH₃)₂ CHCCl₃.
Origin
1940s; earliest use found in Science.
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