from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun an
obstructionto the flowof a rivercaused by the flowof a glacier
- noun roofing a mass of ice formed at the transition from a warm to a cold roof surface, frequently formed by refreezing meltwater at the
overhangof a steeproof, causing ice and water to back up under roofing materials.
Sorry, no etymologies found.
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