| 1. | Tetrapods are concrete blocks shaped like caltrops, which interlock when piled up.
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| 2. | He follows her but her caltrops prick his limbs.
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| 3. | :The device appears to be an improvised Caltrop.
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| 4. | It is a member of the caltrop family Zygophyllaceae.
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| 5. | :Why did you post this here Caltrop?
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| 6. | The carapace is caltrop-shaped and has dorsal, rostral and lateral spines.
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| 7. | Their insignia is also a Caltrop.
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| 8. | Caltrops serve to slow down the advance of horses, war elephants, and human troops.
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| 9. | The ground was also sown with caltrops of iron barbs at various places to discourage assault.
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| 10. | In more modern times, caltrops are still effective when used against wheeled vehicles with pneumatic tires.
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