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

Origin of pentachloronitrobenzene

Also called terrachlor.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019