1855–60; < French < Late Latin molīnum mill 1
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"The size of the triangular moulin fractures on the surface remains unchanged for several years. Radar images show that although they change over time inside the glacier, they are still detectable years after their formation."
From Science Daily • Jan. 5, 2026
The first results of these moulin descents have been published in the journal Geophysical Research Letters.
From Washington Post • Dec. 23, 2020
Then he lofted the bottle into the Behar and we all watched it disappear, floating toward the moulin in the icy blue.
From The New Yorker • Oct. 17, 2016
Shjon had been riding a snowmobile Saturday when he fell into a 150-foot-deep glacial moulin, a hole created by surface water.
From Reuters • Apr. 15, 2013
The depth of the moulin could not be thus ascertained, but we soon found a second and still larger one which gave us better data.
From The Glaciers of the Alps Being a narrative of excursions and ascents, etc. by Tyndall, John
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
