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ice sheet

noun
1.
a broad, thick sheet of ice covering an extensive area for a long period of time.
2.
a glacier covering a large fraction of a continent.
Origin
1870-1875
1870-75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for ice sheet
  • It would take the melting of an ice sheet to do that.
  • The northern continents are still rebounding from being under a mile-high ice sheet.
British Dictionary definitions for ice sheet

ice sheet

noun
1.
a thick layer of ice covering a large area of land for a long time, esp those in Antarctica and Greenland
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
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ice sheet in Science
ice sheet  
A large sheet of ice and snow that covers an entire region and spreads out under its own weight. Ice sheets have an area of more than 50,000 square km (19,500 square mi). Compare icecap.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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5
6
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