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1. (n.) caltrop
any of several plants having spiny heads or fruit, as those of the genera Tribulus and
Kallstroemeria.
2. caltrop
an iron ball with four projecting spikes, one of which always points upward when the ball is placed on the ground: used to obstruct cavalry, vehicles, etc.
Etymology: (bef. 1000; ME calketrappe, OE calcatrippe)
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| Definition of 'caltrop' |
Princeton's WordNet |
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1. (noun) caltrop, devil's weed, Tribulus terestris
tropical annual procumbent poisonous subshrub having fruit that splits into five spiny nutlets; serious pasture weed
2. (noun) water chestnut, water chestnut plant, caltrop
a plant of the genus Trapa bearing spiny four-pronged edible nutlike fruits
3. (noun) star-thistle, caltrop, Centauria calcitrapa
Mediterranean annual or biennial herb having pinkish to purple flowers surrounded by spine-tipped scales; naturalized in America
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| Definition of 'caltrop' |
Webster Dictionary |
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1. (noun) caltrop
alt. of Caltrap
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Definitions of caltrop 
