- 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.
Origin of rotenone
1920–25; roten- (said to be < Japanese) + -one
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for rotenone
Rotenone was used in a few small pools in efforts to capture complete populations.
Rotenone acts more slowly than cyanide, allowing more of the distressed fish to rise to the surface.
Tables 12-16 list all fish obtained at the upper Neosho station by means of the shocker, seines, and rotenone.
In all three years of the study, large samples were obtained by means of rotenone in the same pool at the upper Neosho station.
In 1958 and 1959 rotenone was applied to the upper end of a pool and mixed by agitating the water.
- a white odourless crystalline substance extracted from the roots of derris: a powerful insecticide. Formula: C 23 H 22 O 6; relative density: 1.27; melting pt: 163°C
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