1A hook which can be attached securely to ice (in modern use, frequently in Mountaineering); specifically = ice anchor .
2A hook employed in securing and hoisting or dragging ice, especially for storage. Now chiefly historical.
3historical A type of boat hook used to push large floating sections of ice away from a ship. Compare ice pole .
Late 17th century; earliest use found in Account of Several Late Voyages. From ice + hook.