IPA: /ˈkæltrɒp/
KK: /ˈkæltrəp/
A type of metal device with four sharp points that can puncture tires or harm animals, or a plant with spiny fruits.
The soldiers used caltrops to slow down the enemy's vehicles.
Caltrop → The word 'caltrop' originates from Middle English 'caltrap', which is derived from Old French 'caltrop' (meaning a spiked device used to impede horses or vehicles). The term refers to a device with sharp spikes that is scattered on the ground to injure or impede the movement of animals or vehicles.
Imagine a spiked device that 'traps' ('caltrop') anything that steps on it, helping you remember that a caltrop is used to impede movement.