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Glacier
01
a large mass of ice that forms over long periods of time, especially in polar regions or high mountains
Example
Scientists study glaciers to understand the effects of climate change on ice melt and sea-level rise.
Mountaineers face numerous challenges when attempting to traverse icy crevasses on glaciers.
The sounds of cracking and rumbling echoed through the valley as the glacier moved and shifted.
Glaciers contribute to the flow of freshwater into the ocean.
A chunk of the ice broke off from the glacier.
