- Any of numerous chiefly tropical vines of the genus Dioscorea, many of which have edible tuberous roots. (noun)
- The starchy root of any of these plants, used in the tropics as food. (noun)
- Chiefly Southern U.S. See sweet potato. See Regional Note at goober. (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.