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Serac

   Also found in: Dictionary/thesaurus, Acronyms, Wikipedia 0.01 sec.
serac [sə′rak]
(hydrology)
A sharp ridge or pinnacle of ice among the crevasses of a glacier.

Serac 

a sharp ice protuberance on the surface of a glacier. Seracs form when the ice cliffs between transverse crevasses collapse and melt nonuniformly in an icefall area.



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Regis Lavergne, a rescue worker, told French television there was "no more hope" of finding the missing mountaineers alive, adding that they were probably on the lower reaches of the glacier "underneath the lumps of serac [pillar of ice]".
As the fastest climbers descended in darkness across The Bottleneck, about 1,148ft below the summit, a huge serac, or column of ice, fell.
A chunk of ice broke off from a serac - a pillar of ice - and tore away fixed lines from a steep gully known as the Bottleneck.
 
 
 
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