Example Sentences
"Melting permafrost is a sign of climate change."
"Permafrost contains ancient organic material."
Synonyms & Related Terms
Quick Check
Which best describes the meaning of permafrost?
Study Tips
To remember permafrost, try writing it in a sentence of your own. Connect it to something you already know about geography.
Use it in conversation today — saying a word aloud three times helps lock it into long-term memory.