Definition of "groundnut" []

• A climbing vine (Apios americana) of eastern North America, having compound leaves, clusters of fragrant brownish flowers, and small edible tubers. (noun)
• Any of several plants having underground tubers or nutlike parts. (noun)
• The tuber or nutlike part of such a plant. (noun)
• Chiefly British and South Atlantic U.S. A peanut. (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.

• "It comprises especially agroindustrial by-products (oil cake, beer mash), but also relatively nutritious harvest residues, such as groundnut and nieb straw."
• "Seeds, such as groundnut, sunflower, cotton and kapok are decorticated."
• "Seed oils, such as groundnut or peanut oil, maize germ or corn oil, coconut oil, palm kernel oil and soya bean oil; and 2) Fruit oils, especially olive oil, sunflower oil and palm oil."