Open English Wordnet
Nouns
(n)yam bean, potato bean, Pachyrhizus tuberosustwining plant of Amazon basin having large edible roots
(n)yam bean, Pachyrhizus erosusCentral 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