caltrop

• اسم يشير إلى نبات أو عشب ذي ثمار أو جوزات شوكية، ينمو في المناطق الاستوائية أو المتوسطية ويُعرف بأشواكه الدفاعية. كما يُطلق على أي عائق شوكي أو أداة مدببة تُفرش على الأرض لعرقلة المارة أو الخيول.

A noun referring to a plant or weed with spiny fruits or nutlets, often found in tropical or Mediterranean regions and known for its prickly defenses.

1. Weed with spiny fruitC2formalscientific

   A tropical annual plant with a low-growing, trailing habit, known for its poisonous properties and fruit that splits into five sharp, spiny segments; often a problematic weed in pastures.

   القرطب

   • The farmer struggled to control the caltrop infestation in his field.
   • Caltrop is considered a serious pasture weed in many tropical regions.
   • The spiny nutlets of the caltrop can injure livestock.

2. Water chestnut plantC2formalscientific

   An aquatic plant of the genus Trapa, which produces a hard, four-pronged, edible nut-like fruit.

   الكستناء المائية

   • The caltrop plant grows in slow-moving freshwater ponds.
   • The nut-like fruit of the caltrop is sometimes harvested for food.
   • Water caltrop has distinctive spiny fruits that resemble a weapon.

   المرادفاتwater caltropwater chestnut

3. Thistle-like herbC2formalscientific

   A Mediterranean plant, either annual or biennial, with pinkish to purple flowers surrounded by spine-tipped scales; it has become naturalized in parts of America.

   قُطْب

   • The caltrop's spiny scales make it difficult to handle without gloves.
   • This Mediterranean caltrop has naturalized in many American fields.
   • The pinkish flowers of the caltrop are quite distinctive.

   المرادفاتstar-thistle