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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. an obstruction to the flow of a river caused by the flow of a glacier
  • n. a mass of ice formed at the transition from a warm to a cold roof surface, frequently formed by refreezing meltwater at the overhang of a steep roof, causing ice and water to back up under roofing materials.


Sorry, no etymologies found.


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