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n. - Ground that is forever covered in ice.

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Usage examples (35)
  • The temperature in the permafrost is rising in Alaska, northwest Canada, Siberia and Northern Europe.
  • "Subsea permafrost is losing its ability to be an impermeable cap," Natalia Shakhova, a scientist at the University of Fairbanks, Alaska, said in a statement.
  • The permanently frozen subsoil, known as permafrost, upon which
  • It lies above the uppermost part of the permafrost called the permafrost table.
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