glacial valley
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Related to glacial valley: hanging valley, Glacial erosion
glacial valley
n.
A steep-sided, U-shaped valley formed by the erosive forces of a moving glacier.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.