Any of various usually woody vines of the genus Derris of tropical Asia whose roots yield the insecticide rotenone

• Several are sources of native fish and arrow poisons
• Plant poisonous to fish

Wikipedia Word definitions in Wikipedia
Derris is a climbing leguminous plant of Southeast Asia and the southwest Pacific islands, including New Guinea . Its roots contain rotenone , a strong insecticide and fish poison. Also known as derris powder and tuba root , it was formerly used as an organic ...

Wiktionary Word definitions in Wiktionary
n. A climbing leguminous plant of Southeast Asia and the southwest Pacific Islands, whose roots are a source of rotenone.

WordNet Word definitions in WordNet
n. any of various usually woody vines of the genus Derris of tropical Asia whose roots yield the insecticide rotenone; several are sources of native fish and arrow poisons