PITON

n. metal spike with a hole through which a rope is threaded (used in mountain climbing)

This article is about the rock climbing tool. There is a pair of mountains known as the Piton Mountains. In climbing, a piton (pronounced Pee'-ton, also called a pin or peg) is a steel spike that is driven into a crack or seam in the rock with a hammer, and which acts as an anchor to protect the climber against the consequences of a fall, or to assist progress in aid climbing.
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Noun
1. a metal spike with a hole for a rope; mountaineers drive it into ice or rock to use as a hold
(hypernym) spike

n. piton; peg, bolt

n. piton, metal spike with a hole through which a rope is threaded (used in mountain climbing); spout; python, any of several species of large constrictor snakes