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Esker

6 dictionary results for: esker

Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

es·ker

[es-ker] Pronunciation Key

–noun Geology.

a serpentine ridge of gravelly and sandy drift, believed to have been formed by streams under or in glacial ice.

[Origin: 1850–55; < Ir eiscir ridge of mountains

]

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

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American Heritage Dictionary - Cite This Source - Share This

es·ker (ěs'kər) Pronunciation Key
n. A long, narrow ridge of coarse gravel deposited by a stream flowing in or under a decaying glacial ice sheet. Also called os³.

[Irish Gaelic eiscir, from Old Irish escir.]

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

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Online Etymology Dictionary - Cite This Source - Share This
esker

"deposit left by a glacial stream," 1852, from Ir. eiscir "ridge of gravel."

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WordNet - Cite This Source - Share This

esker
noun
(geology) a long winding ridge of post glacial gravel and other sediment; deposited by meltwater from glaciers or ice sheets

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The American Heritage Science Dictionary - Cite This Source - Share This

esker (ěs'kər) Pronunciation Key
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).

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