A collaborative glossary of climbing terms

The process by which a climber can descend a fixed rope. Also known as Rappel

A medical condition that is often observed at high altitudes. Also known as Acute mountain sickness, or AMS

1. A small ridge-like feature or a sharp outward facing corner on a steep rock face
2. Arête, a narrow ridge of rock formed by glacial erosion
3. A method of indoor climbing, in which one is able to use such a corner as a hold. See also dihedral.

Ascend

The place where climbers retreat at the end of the day

A prominent feature that juts out from a rock or mountain

Metal rings with spring-loaded gates, used as connectors. Usually oval or roughly D shaped

Metal framework with spikes attached to boots to increase safety on snow and ice

Cloaked figure lurking on mountains, fraying ropes and loosening pitons.

For alpine and rock climbers this term implies the use of two separate ropes

A big cold thing you ought not to climb. See also 'Pub'