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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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Word History and Origins
Origin of pentachloronitrobenzene1
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