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rotenone

[roht-n-ohn] /ˈroʊt nˌoʊn/
noun, Chemistry, Pharmacology
1.
a white, crystalline, water-insoluble, poisonous heterocyclic compound, C 2 3 H 2 2 O 6 , obtained from derris root: used chiefly as the active ingredient of certain insecticides and in medicine in the treatment of chiggers and scabies.
Origin
1920-1925
1920-25; roten- (said to be < Japanese) + -one
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for rotenone
  • rotenone is a critical tool in maintaining the wild heritage brook trout fishery.
British Dictionary definitions for rotenone

rotenone

/ˈrəʊtɪˌnəʊn/
noun
1.
a white odourless crystalline substance extracted from the roots of derris: a powerful insecticide. Formula: C23H22O6; relative density: 1.27; melting pt: 163°C
Word Origin
C20: from Japanese rōten derris + -one
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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