roche moutonnee

roche mou·ton·née  (rôsh mtn-, mtô-n)

n. pl. roches mou·ton·nées (rôsh mtn-, -z, mtô-n)

An elongate mound of bedrock worn smooth and rounded by glacial abrasion.

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[French : roche, rock + moutonné, fleecy.]

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roche moutonnée  (rôsh mtn-, mtô-n)

An elongate mound of bedrock worn smooth and rounded by glacial abrasion. A roche moutonnée has a long axis parallel to the direction of glacial movement, a gently sloping, striated side facing the direction from which the glacier originated, and a steeper side facing the direction of glacial movement. The height, length, and width of roche moutonnées are on the order of a few meters (tens of feet).