Definition, Meaning & Synonyms
permafrost
noun
ˌpɜːrməˈfrɔːst
Definition
Permafrost is a layer of permanently frozen subsoil found in polar regions and high mountains.
Examples
- The construction of buildings in permafrost areas requires special engineering techniques.
- In some regions, melting permafrost is releasing ancient carbon into the atmosphere.
- Permafrost protects underground ice and maintains a stable climate for ecosystems.
Meaning
The soil or ground that remains frozen for at least two consecutive years, primarily occurring in Arctic and subarctic regions.
Synonyms
- Frozen ground
- Subsoil
