the large, white, fleshy root of a Mexican vine, eaten raw or cooked
Origin:
MexSp jícama < Nahuatl
See jicama in American Heritage Dictionary 4
noun
A crisp, sweet turnip-shaped root vegetable (Pachyrhizus erosus) used raw in salads and as crudités or cooked in stews. Also called Mexican turnip, yam bean.