[dee-gley-shee-ey-shuhn, -see-]
noun Geology.
the gradual melting away of a glacier from the surface of a landmass.

1890–95; de- + glaciation Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Science Dictionary
deglaciation   (dē-glā'shē-ā'shən)  Pronunciation Key 
The uncovering of land that was previously covered by a glacier. Deglaciation occurs when a glacier melts.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Although the measurement techniques used by each author differed, everyone is in agreement that the deglaciation is continuing.
Following deglaciation, a lake was formed behind the terminal moraine.
Image for deglaciation
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