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The highest crevasse on an alpine glacier, formed where the mass of moving ice pulls away from stagnant ice on a headwall.
[German Bergschrund : Berg, mountain (from Middle High German berc, from Old High German berg; see bhergh- in Indo-European roots) + Austrian, Bavarian, and Swiss German Schrund, rock crevasse, bergschrund, from variant of German Schrunde, crack, fissure (from Middle High German schrunde, from Old High German scrunta, from scrintan, to crack, tear, rip open, of unknown origin).]
(Physical Geography) a crevasse at the head of a glacier. Also called: rimaye
[C19: German: mountain crack]