Moulin

(à poivre) mill (peppermill); also used for oil and flour mills.
Found on http://www.patriciawells.com/glossary/

Moulin

(French, 'mill') A shaft by which supraglacial meltwater enters a glacier to become englacial or subglacial.
Found on https://www.encyclo.co.uk/local/20131

moulin

(French: `mill`), a nearly cylindrical, vertical shaft that extends through a glacier and is carved by meltwater from the glacier`s surface. ...
Found on http://www.britannica.com/eb/a-z/m/128

moulin

moulin (mOOlăN') : see pothole.
Found on http://www.infoplease.com/ce6/sci/A0916471.html

Moulin

[geology] A moulin or glacier mill is a roughly circular, vertical to nearly vertical well-like shaft within a glacier through which water enters from the surface. The term is derived from the French word for mill. They can be up to 10 metres wide and are typically found at a flat area of a glacier in a region of transverse crevasses. Mouli...
Found on http://en.wikipedia.org/wiki/Moulin_(geology)

moulin

shaft in a glacier caused by water running down a crack
Found on http://phrontistery.info/m.html
No exact match found