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
The climate around Sanae IV is particularly harsh, with a continuous permafrost (the ground is permanently frozen.
—
Dan Perry, Newsweek, 18 Mar. 2025
As permafrost melts, scientists are able to discover prehistoric animals such as mammoths like this one, bison,and dogs.
—Saleen Martin, USA TODAY, 24 Dec. 2024
And who knows what paleolithic plagues wait in the permafrost to be thawed?
—Mark Gongloff, Mercury News, 1 Apr. 2025
The thawing of methane-rich permafrost or the collapse of critical systems like the Atlantic Ocean currents could accelerate warming and other climate impacts beyond human control.
—David Carlin, Forbes, 19 Feb. 2025
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.
Dan Perry, Newsweek, 18 Mar. 2025
As permafrost melts, scientists are able to discover prehistoric animals such as mammoths like this one, bison,and dogs.
—Saleen Martin, USA TODAY, 24 Dec. 2024
And who knows what paleolithic plagues wait in the permafrost to be thawed?
—Mark Gongloff, Mercury News, 1 Apr. 2025
The thawing of methane-rich permafrost or the collapse of critical systems like the Atlantic Ocean currents could accelerate warming and other climate impacts beyond human control.
—David Carlin, Forbes, 19 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 2 May. 2025.
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
Share