ˈrōt ə nˌōn noun
( -s )
Etymology: International Scientific Vocabulary roten- (from Japanese roten derris plant) + -one
: a crystalline pentacyclic compound C 23 H 22 O 6 that is related to isoflavone, found especially in derris and cube roots, used in insecticides and in primitive fish and arrow poisons, and of low toxicity to warm-blooded animals