ice foot
/ˈʌɪs fʊt/noun
A belt or ledge of ice attached to and extending along the shore in polar regions. Also: a protruding ledge (typically submerged) on the margin of an ice floe, etc.
Origin
Mid 19th century; earliest use found in Elisha Kane (1820–1857), physician and Arctic explorer. From ice + foot, probably after Danish isfod.