What does "periglaciation" mean?

Geomorphic processes resulting from seasonal thawing of snow in areas of permafrost, the runoff from which refreezes in ice wedges and other structures.

Periglaciation

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
Geomorphic processes resulting from seasonal thawing of snow in areas of permafrost, the runoff from which refreezes in ice wedges and other structures. uncountable, usually

Etymology

From peri- + glaciation.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.