pentachloronitrobenzene

[ pen-tuh-klawr-oh-nahy-troh-ben-zeen, -ben-zeen, -klohr- ]
/ ˌpɛn təˌklɔr oʊˌnaɪ troʊˈbɛn zin, -bɛnˈzin, -ˌkloʊr- /

noun Chemistry.

a crystalline compound, C6Cl5NO2, used as an herbicide and insecticide. Abbreviation: PCNB

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Also called terrachlor.

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020