Dictionary
caltrop
noun cal·trop \ˈkal-trəp, ˈkȯl-\
Definition of CALTROP
1
a plural but sing or plural in constr : star thistle 1 b : puncture vine; also : any of various related herbs (genera Tribulus and Kallstroemia) of the same family (Zygophyllaceae, the caltrop family)
2
: a device with four metal points so arranged that when any three are on the ground the fourth projects upward as a hazard to the hooves of horses or to pneumatic tires
Variants of CALTROP
cal·trop also cal·throp \-thrəp\
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Origin of CALTROP
Middle English caltrappe, alteration of calketrappe star thistle, from Old English calcatrippe, from Medieval Latin calcatrippa
First Known Use: 15th century
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