esker
[ es-ker ]
/ ˈɛs kər /
noun Geology.
a serpentine ridge of gravelly and sandy drift, believed to have been formed by streams under or in glacial ice.
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Origin of esker
First recorded in 1850–55, esker is from the Irish word eiscir ridge of mountains
Words nearby esker
eserine, esher, eshkol, esidrix, esk., esker, eskilstuna, eskimo, eskimo curlew, eskimo dog, eskimo pie
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for esker
British Dictionary definitions for esker
esker
eskar (ˈɛskɑː, -kə)
/ (ˈɛskə) /
noun
a long winding ridge of gravel, sand, etc, originally deposited by a meltwater stream running under a glacierAlso called: os
Word Origin for esker
C19: from Old Irish escir ridge
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
Scientific definitions for esker
esker
[ ĕs′kər ]
A long, narrow, steep-sided ridge of coarse sand and gravel deposited by a stream flowing in or under a melting sheet of glacial ice. Eskers range in height from 3 m (9.8 ft) to more than 200 m (656 ft) and in length from less than 100 m (328 ft) to more than 500 km (310 mi).
The American Heritage® Science Dictionary
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