Definition of "sweet potato" []

• A tropical American vine (Ipomoea batatas) having rose-violet or pale pink, funnel-shaped flowers, and cultivated for its fleshy tuberous orange root. (noun)
• The root of this vine, eaten cooked as a vegetable. Also called regionally yam. (noun)
• Informal An ocarina. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The mama-san sets a plate of cold soybean pods between us and returns with two tall glasses of chuhai, a cocktail of sweet potato liquor that goes down as easy as lemonade."