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
Recent Examples on the Web
Studying the permafrost can’t be done without field measurements.
—
Lara Williams, Twin Cities, 22 Jan. 2026
The wolf’s frozen remains were unearthed in permafrost near the village of Tumat in north-eastern Siberia.
—Mrigakshi Dixit, Interesting Engineering, 14 Jan. 2026
The other had recently eaten a bird, which left some feathers in permafrost, as well as rhinoceros meat.
—Evan Bush, NBC news, 14 Jan. 2026
The permafrost that underlies the island is rapidly thawing and destabilizing infrastructure, including the critical radar installation and runway at Thule, renamed Pituffik Space Base in 2022.
—Paul Bierman, Fortune, 14 Jan. 2026
See All Example Sentences for permafrost
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Lara Williams, Twin Cities, 22 Jan. 2026
The wolf’s frozen remains were unearthed in permafrost near the village of Tumat in north-eastern Siberia.
—Mrigakshi Dixit, Interesting Engineering, 14 Jan. 2026
The other had recently eaten a bird, which left some feathers in permafrost, as well as rhinoceros meat.
—Evan Bush, NBC news, 14 Jan. 2026
The permafrost that underlies the island is rapidly thawing and destabilizing infrastructure, including the critical radar installation and runway at Thule, renamed Pituffik Space Base in 2022.
—Paul Bierman, Fortune, 14 Jan. 2026
See All Example Sentences for permafrost
Cite this Entry
“Permafrost.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/permafrost. Accessed 27 Jan. 2026.
Copy CitationKids Definition
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)
Love words? Need even more definitions?
Merriam-Webster unabridged
