rotenone definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a white, odorless, crystalline substance, CHO, obtained from the roots of certain plants, as derris and cube, and used in insecticides
Origin: Japanese roten, derris plush -one
rotenone definition by American Heritage Dictionary
A white crystalline compound, C23H22O6, extracted from the roots of derris and cubé and used as an insecticide.
Origin: Japanese rōten, derris + -one.