(1) A metal spike with a hole for a rope; mountaineers drive it into ice or rock to use as a hold
(1) He noted that some younger members had adopted the new techniques of rock climbing with pitons and ropes, a method he himself enjoyed.
(2) Sometimes he'd open his pack to show us his collection of carabiners, pitons , and ropes.
(3) There's definitely no need for ropes and pitons for this ascent.
(4) Is their experience diminished because they are encumbered with technologies such as ropes, pitons , and freeze-dried foods?
(5) But you cannot really spare the time for that because you may be clinging precariously to a cliff face, attached to ropes and pitons .