‖Cre′vasse″ (kr?′v?s″), n. [F. See Crevice.] 1. A deep crevice or fissure, as in embankment; one of the clefts or fissure by which the mass of a glacier is divided.
2. A breach in the levee or embankment of a river, caused by the pressure of the water, as on the lower Mississippi.