51Թ

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heptachlor

[ hep-tuh-klawr, -klohr ]

noun

  1. a highly toxic, light-tan, waxy solid, C 10 H 5 Cl 7 , used as an insecticide: its manufacture and use are restricted in the U.S.

heptachlor

  1. A white or tan powder used as a pesticide. Because it is highly toxic to humans and is a suspected carcinogen, its use has been largely discontinued. Chemical formula: C 10 H 5 Cl 7 .
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51Թ History and Origins

Origin of heptachlor1

First recorded in 1945–50; hepta- + chlor- 2

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hepta-heptachord

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