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pentachloronitrobenzene
[pen-tuh-klawr-oh-nahy-troh-ben-zeen, -ben-zeen, -klohr-]
noun
Chemistry.
a crystalline compound, C 6 Cl 5 NO 2 , used as an herbicide and insecticide. PCNB
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51Թ History and Origins
Origin of pentachloronitrobenzene1
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