Definition of jumar in English:

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Pronunciation: /ˈdʒuːmə/


A clamp that is attached to a fixed rope and automatically tightens when weight is applied and relaxes when it is removed.

verb (jumars, jumaring, jumared)

[no object]
Climb with the aid of a jumar: the second climber jumars up the fixed rope
More example sentences
  • I was at the end of fixed ropes and did not wait for Ara to belay me who was still jumaring at the base of the wall.
  • Even so, climbers should be schooled in basic rock climbing and comfortable with jumaring and rappelling.
  • While the others sneaked in a last route or two, Anne ascended a static line, collecting her camera and jumaring toward the sky.


1960s: originally in Swiss use, of unknown origin.

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