[noun] [C] - a wire which is stretched low above the ground and operates an explosive device, a gun or a device for catching animals when it is touched by the foot of a person or animalThe border fence is fortified with tripwires, anti-tank ditches, spotlights and watchtowers.
TRIPWIRE
Meaning of TRIPWIRE in English
Cambridge English vocab. Кембриджский английский словарь. 2012