crampon /ˈkɹæmpɑn/noun 3verb 1forms 5 noun3 •An attachment to a shoe or boot that provides traction by means of spikes for climbing or walking on slippery surfaces, especially ice. •An aerial rootlet for support in climbing, as of ivy. •A heraldic figure in the form of a bar bent at the ends into the form of a hook. verb1 •To walk or climb using crampons. formscramponed · cramponned · cramponing · cramponning · crampons