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Definition of Caltrop
1. Noun. Tropical annual procumbent poisonous subshrub having fruit that splits into five spiny nutlets; serious pasture weed.
Exact synonyms: Devil's Weed, Tribulus Terestris
Group relationships: Genus Tribulus, Tribulus
Generic synonyms: Subshrub, Suffrutex
Group relationships: Genus Tribulus, Tribulus
Generic synonyms: Subshrub, Suffrutex
2. Noun. A plant of the genus Trapa bearing spiny four-pronged edible nutlike fruits.
Exact synonyms: Water Chestnut, Water Chestnut Plant
Group relationships: Genus Trapa, Trapa
Specialized synonyms: Jesuits' Nut, Trapa Natans, Water Caltrop, Ling, Ling Ko, Trapa Bicornis
Generic synonyms: Aquatic Plant, Hydrophyte, Hydrophytic Plant, Water Plant
Group relationships: Genus Trapa, Trapa
Specialized synonyms: Jesuits' Nut, Trapa Natans, Water Caltrop, Ling, Ling Ko, Trapa Bicornis
Generic synonyms: Aquatic Plant, Hydrophyte, Hydrophytic Plant, Water Plant
3. Noun. Mediterranean annual or biennial herb having pinkish to purple flowers surrounded by spine-tipped scales; naturalized in America.
Definition of Caltrop
1. n. A genus of herbaceous plants (Tribulus) of the order Zygophylleæ, having a hard several- celled fruit, armed with stout spines, and resembling the military instrument of the same name. The species grow in warm countries, and are often very annoying to cattle.
Definition of Caltrop
1. a spiny plant [n -S]