malathion

malathion

[mal-uh-thahy-on, ‐uhn]
noun
an organic phosphate insecticide, C 10 H 19 O 6 S 2 P, of relatively low toxicity for mammals.

Origin:
1953

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To MALATHION
Collins
World English Dictionary
Malathion (ˌmæləˈθaɪɒn)
 
n
trademark a yellow organophosphorus insecticide used as a dust or mist for the control of house flies and garden pests. Formula: C10H19O6PS2
 
[C20: from (diethyl) mal(eate) + thio- + -on]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Encyclopedia Britannica
Encyclopedia

malathion

trade name for an organic phosphorus compound that is a general-purpose insecticide considerably less toxic to humans than parathion and is thus suited for the control of household and garden insects. It is important in the control of mosquitoes, flies, and lice. Malathion is a yellow-to-brown liquid with a characteristic unpleasant odour. It is generally prepared by combining O,O'-dimethyl phosphorodithioate with diethyl maleate. It is soluble in most organic solvents except paraffin hydrocarbons, and it is practically insoluble in water. Malathion is readily decomposed by alkalies.

Learn more about Malathion with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature