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View synonyms for moraine

moraine

[ muh-reyn ]

noun

  1. a ridge, mound, or irregular mass of unstratified glacial drift, chiefly boulders, gravel, sand, and clay.
  2. a deposit of such material left on the ground by a glacier.


moraine

/ mɒˈreɪn /

noun

  1. a mass of debris, carried by glaciers and forming ridges and mounds when deposited


moraine

/ mə-rān /

  1. A mass of till (boulders, pebbles, sand, and mud) deposited by a glacier, often in the form of a long ridge. Moraines typically form because of the plowing effect of a moving glacier, which causes it to pick up rock fragments and sediments as it moves, and because of the periodic melting of the ice, which causes the glacier to deposit these materials during warmer intervals.
  2. ◆ A moraine deposited in front of a glacier is a terminal moraine.
  3. ◆ A moraine deposited along the side of a glacier is a lateral moraine.
  4. ◆ A moraine deposited down the middle of a glacier is a medial moraine. Medial moraines are actually the combined lateral moraines of two glaciers that have merged.


moraine

  1. A pile of debris, often extending for miles, deposited by a glacier . It is composed of rock fragments transported by the ice, which are left behind when the ice melts.


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Derived Forms

  • moˈrainal, adjective

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Other Words From

  • mo·rainal mo·rainic adjective

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Word History and Origins

Origin of moraine1

First recorded in 1780–90; from French, from Savoyard dialect morêna “rise in the ground along the lower edge of a sloping field,” equivalent to mour(o) “mound, accumulation of earth” (from unattested murr- “mound, elevation,” apparently pre-Latin ) + -ena suffix of landforms, probably of pre-Latin origin; compare Upper Italian (Piedmont) morena “heap of organic detritus,” Spanish moreña “heap of stones, moraine”

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Word History and Origins

Origin of moraine1

C18: from French, from Savoy dialect morena, of obscure origin

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Example Sentences

We managed to downclimb a thousand meters until, in the evening, it became clear that we wouldn’t make it to the moraine that day, and thus our ninth bivouac was upon us.

In effect, these moraines serve as anchors in times of change.

As long as the moraine survives, it will remain a bulwark, potentially stretching Taku’s retreat over centuries instead of decades.

Materials I found in the moraine later showed that it’s been collecting dust for at least 700,000 years.

I’m still working on a collection that I made in 2006 that took me less than five minutes to collect, in a moraine in Antarctica.

Steck crumpled to the moraine, and it looked as though he'd be bludgeoned to death.

We now put on the rope again, and so crossed the easy glacier which led down to the moraine on which I had been two months before.

Ultimately I struggled across the glacier, bearing various burdens, to meet them as they came down on a parallel moraine.

I camped, at about 19,500 feet, on the moraine-covered glacier opposite the junction of the northerly branch from Pks.

A terminal moraine, a mile and a half in depth, separates it from the sea.

Toward evening I clambered down to the cottage by Moraine Lake.

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