beartrap

Meanings

1. A large trap used to catch a bear or other mammal, usually as a foot trap.
2. A radar trap used by police to catch speeders.
3. A device that traps a probe on a rotorcraft, securing it to the helicopter deck of a vessel.
4. A system of rotorcraft recovery aboard watercraft in heavy sea states, which uses the beartrap device to land securely and transport the aircraft into the hangar.

Etymology

From bear + trap.