1. A plant of the genus Trapa bearing spiny four-pronged edible nutlike fruits
   - water chestnut plant, caltrop 
2. Chinese sedge yielding edible bulb-shaped tubers
   - Chinese water chestnut, Eleocharis dulcis 
3. Edible bulbous tuber of a Chinese marsh plant

Derived forms: water chestnuts

Type of: aquatic plant, hydrophyte, hydrophytic plant, spike rush, tuber, water plant

Part of: genus Trapa, Trapa

Encyclopedia: Water chestnut

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