- a broad, thick sheet of ice covering an extensive area for a long period of time.
- a glacier covering a large fraction of a continent.
Origin of ice sheet
First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for ice sheet
Under his single weight we could see the ice-sheet undulating.Ten Thousand Miles with a Dog Sled
Underneath the ice-sheet the stones, sand, and clay behaved in the same way.
All of them thus owe their origin to the action of the ice-sheet.
Eventually, however, this later advance of the ice-sheet ceased.
When the ice-sheet came down from the north it dragged along all of the soil and loose rock material that lay in its path.Earth and Sky Every Child Should Know
Julia Ellen Rogers
- 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
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.