permafrost


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per·ma·frost

 (pûr′mə-frôst′, -frŏst′)
n.
Permanently frozen subsoil, occurring throughout the Polar Regions and locally in perennially frigid areas.

permafrost

(ˈpɜːməˌfrɒst)
n
(Physical Geography) ground that is permanently frozen, often to great depths, the surface sometimes thawing in the summer
[C20: from perma(nent) + frost]

per•ma•frost

(ˈpɜr məˌfrɔst, -ˌfrɒst)

n.
(in arctic or subarctic regions) permanently frozen subsoil.
[1943; perma (nent) frost]

per·ma·frost

(pûr′mə-frôst′)
A layer of permanently frozen subsoil, reaching depths up to 5,000 feet (1,524 meters). Permafrost is found throughout most of the polar regions.

permafrost

Permanently frozen subsoil.

permafrost

Permanently frozen ground found in polar and subpolar zones.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.permafrost - ground that is permanently frozenpermafrost - ground that is permanently frozen  
land, soil, ground - material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use); "the land had never been plowed"; "good agricultural soil"
Translations

permafrost

[ˈpɜːməfrɒst] Npermagel m

permafrost

permafrost

[ˈpɜːməˌfrɒst] npermafrost m inv
References in periodicals archive ?
By combining field work results with remote-sensing data of lake changes during the past two years, they determined the "abrupt thaw" beneath such lakes is likely to release large amounts of permafrost carbon into the atmosphere this century.
A pair of roundworms (nematodes) have been brought back to life after they were frozen in Siberian permafrost for nearly 42,000 years.
Reports of dangerous microbes being released from thawing permafrost are not as scary as some scientists have reported, but it is a situation that should be studied, maintains Elizabeth Greguske, assistant professor of biology at Saint Anselm College, Manchester, N.H.
Scientists have warned about yet another side effect of global warming - trapped in the permafrost of Northern Hemisphere lies more than twice the amount of mercury in the rest of the earth.
According to one investigation based on geocryological interpretation of the Baikal climate chronicle, permafrost arose about 3.1 million years ago [1], and according to another, 2 million years ago, together with the cooling of the climate on the Earth [2].
More importantly, since QTE will pass through more than 500 km of continuous permafrost regions, a lot of technical barriers especially permafrost degradation have to be addressed [5].
NEW ORLEANS Permafrost in the Arctic is thawing at a faster clip, according to a new report released Tuesday.
The soil in Svalbard--located about 800 miles from the North Pole--is permafrost that has always stayed frozen year round and was expected to help preserve the seeds in their underground storage containers.
By: Egypt Today staff CAIRO -- 8 August 2017: Russian scientists have discovered on Monday a unique 12th century mummy that had been buried in permafrost soil in Siberia and named it called the Polar Princess which was buried in permafrost soil in the 12th century.
Permafrost has been reigning undisturbed since the last ice age.
New analysis by satellite and helicopter shows gas pipelines run right over swelling tundra which is deeply unstable due to the release of underground methane that had been frozen in permafrost - now thawing - for thousands of years, revealed Russia's leading expert on the new phenomenon, Professor Vasily Bogoyavlensky.
Norway is repairing the entrance of a 'doomsday' seed vault on an Arctic island after an unexpected thaw of permafrost let water into a building meant as a deep freeze to safeguard the world's food supplies.