karabiner
/ˌkɛrəˈbiːnər/
noun
- A metal loop with a spring-loaded gate, used to quickly connect ropes, straps, or other equipment, especially in climbing.
- Always check that the karabiner is locked before putting weight on it.
- He used a karabiner to attach his water bottle to his backpack.
- The climber clipped her rope into the karabiner on her harness.