Caltrop
Definition of Caltrop
- 1. Tropical annual procumbent poisonous subshrub having fruit that splits into five spiny nutlets; serious pasture weed Noun
- 2. A plant of the genus Trapa bearing spiny four-pronged edible nutlike fruits Noun
- 3. Mediterranean annual or biennial herb having pinkish to purple flowers surrounded by spine-tipped scales; naturalized in America Noun