dieldrin

[ deel-drin ]

/ ˈdil drɪn /

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noun Chemistry.

a light tan, crystalline, water-insoluble, poisonous solid, C12H8OCl6, used as an insecticide: manufacture and use have been discontinued in the U.S.

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THINGAMABOB OR THINGUMMY: CAN YOU DISTINGUISH BETWEEN THE US AND UK TERMS IN THIS QUIZ?

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In the UK, COTTON CANDY is more commonly known as…

candystring

candyfloss

candypuff

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Origin of dieldrin

First recorded in 1945–50; Diel(s-Al)d(e)r (reaction) + -in²

Words nearby dieldrin

Diégo-Suarez, die-hard, die in harness, diel, die laughing, dieldrin, dielectric, dielectric constant, dielectric heating, dielectric lens, dielectric loss

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

British Dictionary definitions for dieldrin

dieldrin

/ (ˈdiːldrɪn) /

noun

a crystalline insoluble substance, consisting of a chlorinated derivative of naphthalene: a contact insecticide the use of which is now restricted as it accumulates in the tissues of animals. Formula: C 12 H 8 OCl 6

Word Origin for dieldrin

C20: from Diel (s-Al) d (e) r (reaction) + -in

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for dieldrin

dieldrin

[ dēl′drĭn ]

A light tan, toxic, carcinogenic compound used as an insecticide on fruit, soil, and seed, and in controlling tsetse flies and other carriers of tropical diseases. Chemical formula: C12H8Cl6O.