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noun

moraine

muh-RAYN
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Moraine (noun) means a mass of rocks and debris carried and left behind by a glacier. Example: “The lake lies behind a ridge of moraine left by the ice.”

noun
1
technical A mass of rocks and debris carried and left behind by a glacier.
"The lake lies behind a ridge of moraine left by the ice."
"Walkers followed a path along the edge of the moraine."
"Geologists mapped the moraine to see how far the glacier had once reached."

How to use moraine

Learner’s notes

In plain EnglishA pile of rock and rubble left behind by a glacier.

When to use it

It is mainly used in geology and physical geography.

Memory tip

Moraines are the material itself, so you can say a glacier deposits a moraine.

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Common pairings
glacial moraine end moraine ridge of moraine moraine lake
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Fill the gap

Can you complete this real example?

The lake lies behind a ridge of _____ left by the ice.

Etymology

English took the word from French moraine, which came from Savoyard Italian morena. That word goes back to Franco-Provençal words meaning muzzle or snout.

Origin: French

Rhymes for moraine

See all rhymes for moraine →

Frequently asked questions

What is a moraine?
A moraine is an accumulation of rocks and debris carried and deposited by a glacier.
How is moraine pronounced?
It is pronounced muh-RAYN, with the stress on the second syllable.
What is a moraine made of?
It is made of rocks and other debris that a glacier has carried and dropped.
What is the meaning of moraine?
"moraine" (noun) means a mass of rocks and debris carried and left behind by a glacier.