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dieldrin

[ deel-drin ]
/ ˈdil drɪn /

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.

Nearby words

  1. dieffenbachia,
  2. diegesis,
  3. diego garcia,
  4. diehard,
  5. diel,
  6. dielectric,
  7. dielectric constant,
  8. dielectric heating,
  9. dielectric lens,
  10. dielectric loss

Origin of dieldrin

First recorded in 1945–50; Diel(s-Al)d(e)r (reaction) + -in2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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

Medicine definitions for dieldrin

dieldrin

[ dī-ĕl′drĭn, dēl′- ]

n.

A chlorinated hydrocarbon used as an insecticide and in mothproofing.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science 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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.