Pronunciation: [kɹˈɛvəsɪz] (IPA) 
Crevasses is a plural form of the noun crevasse, meaning a deep crack or fissure in a glacier or other surface. The word is spelled with a "v" in the middle, rather than a "s", due to its French origin. It is pronounced \krə-ˈvas, -ˈväs or krə-ˈväs-əz\, with the stress on the second syllable. The double "s" in the IPA notation indicates that the "s" sound is continuous, rather than a separate syllable.
Crevasses, commonly pronounced /krəˈvæsɪz/ (singular: crevasse), refer to deep and elongated cracks or fissures found in glaciers, polar ice, or mountains. They are primarily formed due to the movement and melting of ice, creating openings and gaps in the frozen terrain. These fractures can range in size, from small thin cracks to massive chasms that can extend several meters or more into the ice or rock.
Crevasses often occur in regions where glaciers move rapidly or in areas with uneven terrain, causing stress and pressure on the ice sheet, thereby facilitating the formation of these cracks. They can also occur as a result of the movement of ice over obstacles and irregularities on the underlying surface. Crevasses can pose significant hazards to climbers, hikers, or explorers traversing icy or snowy landscapes. The unstable nature of crevasses makes it imperative for those venturing into such areas to exercise caution, as falling into a crevasse can result in severe injury or death.
These formations can be visually characterized by their depth, width, and shape, which may vary depending on the specific environment in which they are found. Crevasses can provide valuable insight into the movement and behavior of glaciers and ice sheets, aiding in scientific research related to climate change and glacial dynamics. Researchers and adventurers often employ various safety measures and techniques, such as roping up, to navigate safely across crevassed terrain.
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The word "crevasse" is borrowed from the French language. It comes from the Old French word "crevace", which means a "crack" or "fissure". This, in turn, is derived from the Old French verb "crever", meaning "to burst" or "to split". The word "crevasse" entered English in the mid-19th century and specifically refers to deep cracks or fissures, typically found in glaciers or icy terrain.
