Yam, the tuberous root of a species of Dioscorea, a genus of climbing vines chiefly displayed in the tropics, where they are extensively cultivated for food. The name has also but wrongly been applied to forms of the sweet potato.
See also Yam on Wikipedia, and the disclaimer.
Yam, the tuberous root of a species of Dioscorea, a genus of climbing vines chiefly displayed in the tropics, where they are extensively cultivated for food. The name has also but wrongly been applied to forms of the sweet potato.