Search Result for "derris": 
Wordnet 3.0

NOUN (1)

1. 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; 



WordNet (r) 3.0 (2006):

derris
    n 1: 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