noun
- Tropical annual procumbent poisonous subshrub having fruit that splits into five spiny nutlets; serious pasture weed.
- synonyms: devil's weed, Tribulus terestris
- A plant of the genus Trapa bearing spiny four-pronged edible nutlike fruits.
- synonyms: water chestnut, water chestnut plant
- Mediterranean annual or biennial herb having pinkish to purple flowers surrounded by spine-tipped scales; naturalized in America.
- synonyms: star-thistle, Centauria calcitrapa
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). caltrop. Retrieved September 21, 2026, from http://smartdefine.org/caltrop/definitions/1240408 |
| Chicago | WordNet. 2010. "caltrop" http://smartdefine.org/caltrop/definitions/1240408 (accessed September 21, 2026). |
| Harvard | WordNet 2010, caltrop, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/caltrop/definitions/1240408>. |
| MLA | WordNet. "caltrop" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/caltrop/definitions/1240408> |