noun (n)

• twining plant of Amazon basin having large edible roots(noun.plant)

  Synonym:
  pachyrhizus tuberosus, yam bean
  

  source: wordnet30
• a North American vine with fragrant blossoms and edible tubers; important food crop of Native Americans(noun.plant)

  Synonym:
  apios americana, apios tuberosa, groundnut, groundnut vine, indian potato, wild bean
  

  source: wordnet30
• nutlike tuber; important food of Native Americans(noun.food)

  Synonym:
  groundnut, wild bean
  

  source: wordnet30