(1) A set of metal spikes which are strapped to the boots to provide secure footing on steep ice or consolidated snow.
(2) Spikes that attach to the soles of boots, for traveling on hard snow or ice.
(1) After a while hiking with crampons, I got my usual round of cramps.
(2) "Wait while I clean my crampons," said Ed, cleaning the cramp off his footwear. Good old Ed. If its there, he steps in it.