D defs.my
Entry 2 senses Webster, 1913

Crevasse

/(kr?`v?s")/ · Cre·vasse · IPA /kɹəˈvæs/
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.
  1. 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. 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.]