caltrop

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. tropical annual procumbent poisonous subshrub having fruit that splits into five spiny nutlets;
serious pasture weed
• Syn:
devil's weed, Tribulus terestris
• Hypernyms:
subshrub, suffrutex
• Member Holonyms:
Tribulus, genus Tribulus
2. a plant of the genus Trapa bearing spiny four-pronged edible nutlike fruits
• Syn:
water chestnut, water chestnut plant
• Hypernyms:
aquatic plant, water plant, hydrophyte, hydrophytic plant
• Hyponyms:
water caltrop, Jesuits' nut, Trapa natans, ling, ling ko, Trapa bicornis
• Member Holonyms:
Trapa, genus Trapa
3. Mediterranean annual or biennial herb having pinkish to purple flowers surrounded by spine-tipped scales;
naturalized in America
• Syn:
star-thistle, Centauria calcitrapa
• Hypernyms:
centaury

• Từ đồng nghĩa / Synonyms:
  star-thistle, Centauria calcitrapa, water chestnut, water chestnut plant, devil's weed, Tribulus terestris