nunatak

noun

A peak, ridge, or hill of bedrock that protrudes from a glacier’s surface.

noun

A crest or ridge of rock appearing above the surface of the inland ice in Greenland.

noun

In Greenland, an insular hill or mountain surrounded by an ice sheet.

noun

A mountain top or rocky element of a ridge that is surrounded by glacial ice but is not covered by ice; a peak protruding from the surface ice sheet.