A nunatak (from Inuit nunataq) is an exposed, often rocky element of a ridge, mountain, or peak not covered with ice or snow within (or at the edge of) an ice field or glacier. The term is typically used in areas where a permanent ice sheet is present. Nunataks present readily identifiable landmark reference points in glaciers or ice caps and are ...
• (n.) In Greenland, an insular hill or mountain surrounded by an ice sheet.
isolated mountain peak that once projected through a continental ice sheet or an Alpine-type ice cap. Because they usually occur near the margin of ... [2 related articles]
Nu'na·tak noun ; plural - taks (the plural form Nunatakker is Swedish). [ Eskimo nunættak .] In Greenland, an insular hill or mountain surrounded by an ice sheet. 
a rocky crag or small mountain projecting from and surrounded by a glacier or ice sheet.
(Inuktitut) An area that is unglaciated, but surrounded by ice. 
a hill or mountain that has been completely encircled by a glacier.