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icefall

American  
[ahys-fawl] / ˈaɪsˌfɔl /

noun

  1. a jumbled mass of ice in a glacier.

  2. a mass of ice overhanging a precipice.

  3. a falling of ice from a glacier, iceberg, etc.


icefall British  
/ ˈaɪsˌfɔːl /

noun

  1. a very steep part of a glacier that has deep crevasses and resembles a frozen waterfall

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of icefall

First recorded in 1810–20; ice + fall