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ice age

noun, Geology.
(often initial capital letters) the glacial epoch, especially the Pleistocene Epoch.
Origin of ice age
First recorded in 1870-75 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for ice ages

ice age

another name for glacial period
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 ages in Science
ice age  
  1. Any of several cold periods during which glaciers covered much of the Earth.

  2. Ice Age. The most recent glacial period, which occurred during the Pleistocene Epoch and ended about 10,000 years ago. During the Pleistocene Ice Age, great sheets of ice up to two miles thick covered most of Greenland, Canada, and the northern United States as well as northern Europe and Russia.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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ice ages in Culture

ice ages definition

Periods in the history of the Earth when large glaciers covered much of the surface of the continents.

Note: The last ice age ended less than twenty thousand years ago.
Note: Scientists believe that there will be more ice ages in the future, caused by tiny changes in the Earth's orbit and rotation.
The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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