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permafrost

/pur-muh-frawst, -frost/US // ˈpɜr məˌfrɔst, -ˌfrɒst //UK // (ˈpɜːməˌfrɒst) //

永冻土,永冻土层,永冻层,永久冻土

Related Words

Definitions

n.名词 noun
  1. 1
    • : perennially frozen subsoil.

Synonyms & Antonyms

Examples

  • Though DNA degrades into shorter strings of genetic material over time, making it difficult to handle and piece together, cold permafrost helps to protect genetic information from rapidly falling apart.

  • The most loving thing I ever saw my father do for my mother was getting up before dawn in the permafrost of February to warm up her car.

  • Thawing that permafrost will now release a large share of that carbon into the air, she adds, “which can create additional climate change.”

  • “The amount of carbon that is stored in permafrost is immense,” Neilson notes.

  • Sagging permafrost led to the tank spilling oil, which polluted the Ambarnaya River.

  • I was sitting so low, even the permafrost-stunted spruce trees towered over me.

  • I wondered what would happen to the trees if some of the permafrost melted, allowing roots to expand in longer growing seasons.

  • The reason: frozen permafrost that once contained the lake water (like cement contains a swimming pool) had melted.