Definition of "jumar" []

• A device, used to clip on a rope, that tightens when weight is applied, thus allowing the rope to be climbed (noun)
• To climb using this device (verb)

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• "« Alpine » style and « Heavy » expeditions: The difference between the alpine style and heavy expeditions are as follows: Heavy expeditions install progressively with their progression on the mountain fixed cords on which the mountaineers rise with a handle car-blocking (called the jumar) during the rise and the descent like self-insurance."
• "She needs a pair of jumar clamps and stirrups so that she can ascend the rope."
• "The rope jerked and shivered with his jumar thrusts."