calthrops

/ˈkælθrɑps/
noun
  1. A sharp metal or wooden device with four points, arranged so that one point always sticks up, used to slow down or stop vehicles, horses, or people.
    • The soldiers scattered calthrops across the road to puncture the tires of enemy trucks.
    • The security team placed calthrops around the perimeter to prevent vehicles from entering the restricted area.
    • In medieval times, calthrops were thrown on the ground to injure the feet of charging horses.
  2. A plant with spiny fruits or seeds that can puncture tires or hurt feet, such as the puncture vine.
    • The farmer had to remove calthrops from his field because they damaged his tractor tires.
    • The park ranger warned visitors about the calthrops plant, which spreads quickly and causes flat tires.
    • Hikers should watch out for calthrops growing along the trail, as the sharp seeds can pierce shoe soles.
Synonyms
What does "calthrops" mean? | whatsthatwordmean | whatsthatwordmean