説明中心

permafrost

[ˈpɜːməfrɒst]

permafrost Definition

a thick subsurface layer of soil that remains frozen throughout the year, occurring chiefly in polar regions.

Using permafrost: Examples

Take a moment to familiarize yourself with how "permafrost" can be used in various situations through the following examples!

  • Example

    The permafrost in the Arctic is melting due to climate change.

  • Example

    The construction of buildings on permafrost requires special engineering techniques.

  • Example

    Permafrost is a significant factor in the ecology of the tundra biome.

permafrost Synonyms and Antonyms

Synonyms for permafrost

  • frozen ground
  • frost-bound soil

Phrases with permafrost

  • the thin layer of soil above the permafrost that thaws during the summer months

    Example

    The active layer over permafrost is important for plant growth and nutrient cycling in the tundra.

  • the process by which permafrost thaws and the ground sinks or shifts, often causing damage to infrastructure and ecosystems

    Example

    Permafrost degradation is a major concern in the Arctic due to its impact on infrastructure and the release of greenhouse gases.

  • a man-made tunnel excavated through permafrost for scientific research or mining purposes

    Example

    The Permafrost Tunnel Research Facility in Alaska provides scientists with access to permafrost samples for study.

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Summary: permafrost in Brief

Permafrost [ˈpɜːməfrɒst] refers to a thick layer of soil that remains frozen throughout the year, found mainly in polar regions. It is a significant factor in the ecology of the tundra biome and requires special engineering techniques for building construction. Phrases like 'active layer over permafrost' and 'permafrost degradation' denote important aspects of permafrost, while 'permafrost tunnel' refers to a man-made tunnel excavated through permafrost for scientific research or mining purposes.