medial moraine

noun
a ridge of glacial drift formed by the junction of two converging valley glaciers.
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American Heritage
Science Dictionary
medial moraine   (mē'dē-əl)  Pronunciation Key 
See under moraine.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Deposit formed on a medial moraine in left side of view.
When two valley glaciers join, two lateral moraines merge to create a medial moraine in the middle of the combined glacier.
The confluence of the two glaciers is marked by the medial moraine.
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