- a plant, Ipomoea batatas, of the morning glory family, grown for its sweet, edible, tuberous roots.
- the root itself, used as a vegetable.
- Informal. ocarina.
Origin of sweet potato
An Americanism dating back to 1740–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for sweet potato
Papa found a little bug this morning on the sweet-potato vines.
I ricollec' it was sweet-potato pie, an' it was scorched on one side.Moriah's Mourning and Other Half-Hour Sketches
Ruth McEnery Stuart
It was all I could do to make out an order for asparagus and sweet-potato plants.Dwellers in Arcady
Albert Bigelow Paine
Then he put a sweet-potato in a glass jar half filled with water.
The Sweet-potato, Yam, and Artichoke are all of the same character.The Easiest Way in Housekeeping and Cooking
- a convolvulaceous twining plant, Ipomoea batatas, of tropical America, cultivated in the tropics for its edible fleshy yellow root
- the root of this plant
Also called (NZ): kumara