GLACIER

Glacier

A glacier or is a persistent body of dense ice exceeding a surface area of 0.1 km² constantly moving under its own gravity; it forms where the accumulation of snow exceeds its ablation over many years, often centuries. Glaciers slowly deform and flow due to stresses induced by their weight, creating crevasses, seracs, and other distinguishing features. They also abrade rock and debris from their substrate to create landforms such as cirques and moraines. Glaciers form only on land and are distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water.

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glacier

Noun

  1. A large body of ice which flows under its own mass, usually downhill.


The above text is a snippet from Wiktionary: glacier
and as such is available under the Creative Commons Attribution/Share-Alike License.

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