01 n. A deep crevice or fissure, as in embankment; one of the clefts or fissure by which the mass of a glacier is divided.
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1.
A deep crevice or fissure, as in embankment; one of the clefts or fissure by which the mass of a glacier is divided.
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2.
A breach in the levee or embankment of a river, caused by the pressure of the water, as on the lower Mississippi.[U.S.]