from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A nearly vertical shaft or cavity worn in a glacier by surface or rock debris falling through a crack in the ice.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A cylindrical, vertical shaft that extends through a glacier and is carved by meltwater from the glacier’s surface.
from The Century Dictionary and Cyclopedia
- n. A nearly vertical shaft or cavity worn in a glacier by the running down of water, which sometimes in the hot days of summer, on the large glaciers, forms considerable rivulets on the surface of the ice.
The shop, which takes its name from the fact that it is housed in a 113-year-old former mill (moulin is French for mill) is easy to spot.
COOPER: Well, we climbed into that depression, called a moulin, to get a look at how water is carving deep holes into the ice and how that's affecting the entire ice sheet.
Somewhat below the junction Tyndall and Hirst sounded a moulin, that is, a cavity through which the surface glacier waters escape, to a depth of 160 feet; the guides alleged that they had sounded a similar aperture to a depth of 350 feet, and had found no bottom.
Incredibly, this vertical shaft - called a moulin (French for mill) - manages to swallow this entire river into oblivion, the water plunging a third of a mile towards the base of the icecap.
Lisanne Aerts A moulin forms when water finds a crack in a glacier.
The gear will, in theory, allow me to navigate across glacial ice and climb the moulin walls.
Of all the things that can go wrong on a glacier, falling into a moulin is among the worst.
If we don't climb into a moulin soon, we will run out of time.
Stumble into a moulin, and even a person who survives the fall could become a human cork, wedged into a constriction.
To the right, I see a dark spot—another moulin, this one dry.
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