• synonyms


[dee-gley-shee-ey-shuh n, -see-]
noun Geology.
  1. the gradual melting away of a glacier from the surface of a landmass.
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Origin of deglaciation

First recorded in 1890–95; de- + glaciation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

deglaciation in Science


  1. The uncovering of land that was previously covered by a glacier. Deglaciation occurs when a glacier melts.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.