esker(redirected from eskers)
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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. Also called os3.
[Irish Gaelic eiscir, from Old Irish escir.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Geological Science) a long winding ridge of gravel, sand, etc, originally deposited by a meltwater stream running under a glacier. Also called: os
[C19: from Old Irish escir ridge]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a serpentine ridge of gravelly and sandy drift, formed by glacial meltwater.
[1850–55; < Irish eiscir]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
A long, narrow ridge of coarse sand and gravel deposited by a stream flowing in or under a melting sheet of glacial ice.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||esker - (geology) a long winding ridge of post glacial gravel and other sediment; deposited by meltwater from glaciers or ice sheets|
geology - a science that deals with the history of the earth as recorded in rocks
ridge - a long narrow natural elevation or striation
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