Definition of "crampon"

An attachment to a shoe or boot that provides traction by means of spikes. Used for climbing or walking on slippery surfaces, especially ice.  examples

(botany) An aerial rootlet for support in climbing, as of ivy.  examples

(heraldry) A heraldic figure in the form of a bar bent at the ends into the form of a hook.  examples

To walk or climb using crampons.  examples