Wordnet 3.0
NOUN (1)
1. 
 Central American twining plant with edible roots and pods; 
 large tubers are eaten raw or cooked especially when young and young pods must be thoroughly cooked; 
 pods and seeds also yield rotenone and oils; 
[syn: yam bean, Pachyrhizus erosus]
WordNet (r) 3.0 (2006):
Pachyrhizus erosus
    n 1: Central American twining plant with edible roots and pods;
         large tubers are eaten raw or cooked especially when young
         and young pods must be thoroughly cooked; pods and seeds
         also yield rotenone and oils [syn: yam bean, Pachyrhizus
         erosus]