noun

permafrost

PUR-muh-frawst

Permafrost (noun) means Ground that stays frozen solid all year round, typically in polar or high-altitude regions. Example: “Thawing permafrost is releasing trapped methane in the Arctic.”

noun

Ground that stays frozen solid all year round, typically in polar or high-altitude regions.

"Thawing permafrost is releasing trapped methane in the Arctic."

How to use permafrost

Learner’s notes

In plain EnglishSoil or rock that remains frozen throughout the year, common in Arctic and alpine regions.

Common pairings

permafrost thaw permafrost layer

Word forms

permafrosts plural

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Thawing _____ is releasing trapped methane in the Arctic.

Etymology

From "perma-" (permanent) + "frost."

Frequently asked questions

What does “permafrost” mean?

The word “permafrost” means ground that stays frozen solid all year round, typically in polar or high-altitude regions. In plain terms, soil or rock that remains frozen throughout the year, common in Arctic and alpine regions.

How do you pronounce “permafrost”?

“Permafrost” is pronounced PUR-muh-frawst (/ˈpɝməˌfɹɔst/ in IPA).

How do you use “permafrost” in a sentence?

Here is “permafrost” used in a sentence: “Thawing permafrost is releasing trapped methane in the Arctic.”

What part of speech is “permafrost”?

“Permafrost” is a noun.