sérac

or se·rac

[ si-rak; French sey-rak ]
/ sɪˈræk; French seɪˈrak /
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noun, plural sé·racs [si-raks; French sey-rak] /sɪˈræks; French seɪˈrak/.

a large irregularity of glacial ice, as a pinnacle found in glacial crevasses and formed by melting or movement of the ice.

Origin of sérac

1855–60; < French sérac kind of white cheese (compare Medieval Latin serācium), ultimately < Latin serum whey
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for serac

British Dictionary definitions for serac

sérac

/ (ˈsɛræk) /

noun

a pinnacle of ice among crevasses on a glacier, usually on a steep slope

Word Origin for sérac

C19: from Swiss French: a variety of white cheese (hence the ice that it resembles) from Medieval Latin serācium, from Latin serum whey
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