icecap
Noun
Meaning
a mass of ice and snow that permanently covers a large area of land (e.g., the polar regions or a mountain peak)
Source: WordNetSynonyms
Hypernyms
Anagrams
Examples
Almost a year later, in October 1946, the same B-29 flew 9,422 miles nonstop from Oahu, Hawaii, to Cairo, Egypt, in less than 40 hours, further proving the capability of routing airlines over the polar icecap.
Nansen (1890), pp. 267–270 They continued climbing, until on 11 September they had reached a height of convert above sea level, the summit of the icecap with temperatures dropping to convert at night.