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DDT

Chemistry.
1.
a white, crystalline, water-insoluble solid, C 14 H 9 Cl 5 , usually derived from chloral by reaction with chlorobenzene in the presence of fuming sulfuric acid: used as an insecticide and as a scabicide and pediculicide: agricultural use prohibited in the U.S. since 1973.
Origin of DDT
d(ichloro)d(iphenyl)t(richloroethane)
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Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for DDT

DDT

noun
1.
dichlorodiphenyltrichloroethane; a colourless odourless substance used as an insecticide. It is toxic to animals and is known to accumulate in the tissues. It is now banned in the UK
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
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DDT in Medicine

DDT (dē'dē-tē')
n.
Dichlorodiphenyltrichloroethane; a colorless contact insecticide, toxic to humans and animals when swallowed or absorbed through the skin, that has been banned in the United States for most uses since 1972.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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DDT in Science
DDT
  (dē'dē-tē')   
Short for dichlorodiphenyltrichloroethane. A powerful insecticide that is also poisonous to humans and animals. It remains active in the environment for many years and has been banned in the United States for most uses since 1972 but is still in use in some countries in which malaria is endemic. Chemical formula: C14H9Cl5.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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DDT in Culture

DDT definition


A colorless insecticide that kills on contact. It is poisonous to humans and animals when swallowed or absorbed through the skin. DDT is an abbreviation for dichlorodiphenyltrichloroethane.

Note: Although DDT, when it was first invented, was considered a great advance in protecting crops from insect damage and in combating diseases spread by insects (such as malaria), discoveries led to its ban in many countries. Residue from DDT has been shown to remain in the ecosystem and the food chain long after its original use, causing harm and even death to animals considered harmless or useful to man.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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