Found 2 items, similar to trapa natans.
English → English (WordNet) Definition: Trapa natans Trapa natans n : a variety of water chestnut [syn: water caltrop, Jesuits' nut ]
English → English (gcide) Definition: Trapa natans Saligot \Sal"i*got\, n. [F.] (Bot.) The water chestnut (Trapa natans). [1913 Webster] Water chestnut \Wa“ter chest”nut\ (Bot.) 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. [1913 Webster]