permafrost
noun
per·ma·frost
ˈpər-mə-ˌfrȯst 
: a permanently frozen layer at variable depth below the surface in frigid regions of a planet (such as earth)
Examples of permafrost in a Sentence
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Like woolly mammoths, these mice have curlier hair — which is the same color of the mammoth mummies found in the permafrost — as well as a gene that should impact the way their bodies metabolize fat.
—
Susan Young, People.com, 4 Mar. 2025
Measurements of Arctic permafrost, which are taken from boreholes drilled below the surface, had higher average temperatures than in all but one previous year.
—Evan Bush, NBC News, 10 Dec. 2024
The land collapses as the permafrost below it thaws, like logs pulled out from beneath a woodpile.
—Jon Waterman, Outside Online, 22 Oct. 2024
Microplastics have infiltrated virtually every corner of Earth, from the Arctic permafrost to inside marine animals.
—Kaitlin Sullivan, Health, 20 Feb. 2025
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Susan Young, People.com, 4 Mar. 2025
Measurements of Arctic permafrost, which are taken from boreholes drilled below the surface, had higher average temperatures than in all but one previous year.
—Evan Bush, NBC News, 10 Dec. 2024
The land collapses as the permafrost below it thaws, like logs pulled out from beneath a woodpile.
—Jon Waterman, Outside Online, 22 Oct. 2024
Microplastics have infiltrated virtually every corner of Earth, from the Arctic permafrost to inside marine animals.
—Kaitlin Sullivan, Health, 20 Feb. 2025
See All Example Sentences for permafrost
Cite this Entry
“Permafrost.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/permafrost. Accessed 10 Mar. 2025.
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permafrost
noun
per·ma·frost
ˈpər-mə-ˌfrȯst
: a permanently frozen layer at variable depth below the surface in frigid regions of a planet (as earth)
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