A pile of water chestnuts.Licensed from iStockPhoto
- a Chinese sedge (Eleocharis dulcis) with erect, cylindrical leaves, growing in dense clumps in water
- the large, button-shaped, submerged tubers of this plant, used in Chinese cooking
- a floating aquatic weed (Trapa natans) of the water-chestnut family, with black, hard, horned fruit, the seed of which is sometimes eaten
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
designating a family (Trapaceae, order Myrtales) of floating, aquatic dicotyledonous plants
Used by arrangement with John Wiley & Sons, Inc.
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- A floating aquatic plant (Trapa natans) native to Eurasia and Africa, bearing four-pronged nutlike fruit and grown as a pond or aquarium ornamental. Also called caltrop, water caltrop.
- a. A tropical Asian aquatic sedge (Eleocharis dulcis) having an edible corm and cylindrical leaves.b. The succulent corm of this plant, used in Asian cooking. Also called Chinese water chestnut.