A permanent layer of ice covering an extensive tract of land, especially a polar region.
More example sentences
- Several scientists have proposed that the southern part of the Greenland ice sheet disappeared during the period of maximum interglacial warmth.
- Younger cited evidence for extensive ground freezing in SE England during the Devensian, beyond the limit of the Devensian ice sheet.
- Later, as the permafrost melted and the ice sheet warmed as a result of climatic amelioration, the ice would have become wetbased.
More definitions of ice sheetDefinition of ice sheet in:
- The British & World English dictionary