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rotenone

 [roht-n-ohn]  

ro·te·none

   [roht-n-ohn]
noun Chemistry, Pharmacology.
a white, crystalline, water-insoluble, poisonous heterocyclic compound, C23H22O6, obtained from derris root: used chiefly as the active ingredient of certain insecticides and in medicine in the treatment of chiggers and scabies.
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Origin:
1920–25; roten- (said to be < Japanese ) + -one
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Rotenone is always a great word to know.
So is taurine. Does it mean:
a neutral crystalline substance, C2H7NO3S, obtained from bile
existing as free, uncombined atoms
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Collins
World English Dictionary
rotenone (ˈrəʊtɪˌnəʊn)
 
—n
a white odourless crystalline substance extracted from the roots of derris: a powerful insecticide. Formula: C23H22O6; relative density: 1.27; melting pt: 163°C
 
[C20: from Japanese rōten derris + -one]

Collins English Dictionary - Complete & Unabridged 10th Edition
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