D defs.my
Entry 3 senses Webster, 1913

Crampon

/(krăm"pŏn)/ · Cram·pon · IPA /ˈkɹæmpɑn/
01 n. An aërial rootlet for support in climbing, as of ivy.
  1. 1.
    An aërial rootlet for support in climbing, as of ivy.(Bot.)
  2. 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.
  3. 3.
    same as crampoon. See: crampoon