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: Pachyrhizus erosus • Hypernyms: vine • Member Holonyms: Pachyrhizus, genus Pachyrhizus 2. twining plant of Amazon basin having large edible roots • Syn: potato bean, Pachyrhizus tuberosus • Hypernyms: vine • Member Holonyms: Pachyrhizus, genus Pachyrhizus