'potato bean' definitions:

Definition of 'potato bean'

(from WordNet)
noun
Twining plant of Amazon basin having large edible roots [syn: yam bean, potato bean, Pachyrhizus tuberosus]
noun
A North American vine with fragrant blossoms and edible tubers; important food crop of Native Americans [syn: groundnut, groundnut vine, Indian potato, potato bean, wild bean, Apios americana, Apios tuberosa]
noun
Nutlike tuber; important food of Native Americans [syn: groundnut, potato bean, wild bean]