from The American Heritage® Dictionary of the English Language, 4th Edition
- n. 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.
- n. A tropical Asian aquatic sedge (Eleocharis dulcis) having an edible corm and cylindrical leaves.
- n. The succulent corm of this plant, used in Asian cooking. Also called Chinese water chestnut.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A particular species, Eleocharis dulcis, of plant.
- n. A corm of a plant of this species.
- n. water caltrop
from the GNU version of the Collaborative International Dictionary of English
- The fruit of Trapa natans and Trapa bicornis, Old World water plants bearing edible nutlike fruits armed with several hard and sharp points; also, the plant itself; -- called also water caltrop.
from The Century Dictionary and Cyclopedia
- n. See Trapa.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. edible bulbous tuber of a Chinese marsh plant
- n. a plant of the genus Trapa bearing spiny four-pronged edible nutlike fruits
- n. Chinese sedge yielding edible bulb-shaped tubers
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