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permafrost

UK
/ˈpɜː.mə.frɒst/
US
/ˈpɝː.mə.frɑːst/

Translations

permafrostnoun
The melting of permafrost due to climate change is releasing greenhouse gases into the atmosphere.
La fonte du pergélisol due au changement climatique libère des gaz à effet de serre dans l’atmosphère.
Synonyms
perennial frost
perpetual frost
permafrost layer
permafrostadjective
UK
/ˈpɜː.mə.frɒst/
US
/ˈpɝː.mə.frɑːst/
Used attributively before a noun to describe things relating to or characteristic of permafrost.
Additional translations
pergélisolEn emploi adjectival, se rend généralement par une tournure avec « de pergélisol ».

Definitions

permafrostnoun
A thick subsurface layer of soil that remains frozen throughout the year, occurring chiefly in polar regions.
The melting of permafrost due to climate change is releasing greenhouse gases into the atmosphere.
Ground—soil, sediment, or rock—that remains at or below 0 °C (32 °F) for at least two consecutive years.
Road construction on permafrost requires special insulation layers to prevent the ground from thawing.
permafrostadjective
Relating to or characteristic of permafrost.
Engineers study permafrost conditions before building pipelines in Arctic regions.
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