(Bot.) An aerial rootlet for support in climbing, as of ivy.
2.
A device with pointed metal projections worn over the shoes to provide traction when walking over ice, or in mountaineering; usually used in the plural.
... occupations were in full swing. An amateur cobbler, his crampon on a last, studded its spiked surface with clouts, hammering away in complete disregard of the night-watchman's uneasy slumbers. The big sewing-machine raced at top-speed round the flounce of a tent, and in odd corners among the bunks were groups mending mitts, strengthening sleeping-bags and ... — The Home of the Blizzard • Douglas Mawson
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