[rohsh moot-n-ey; French rawsh moo-taw-ney]
a rounded, glacially eroded rock outcrop, usually one of a group, resembling a sheep's back.
Origin of roche moutonnée
1835–45; < French: glaciated rock, literally, fleecy rock
Also called sheepback rock.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
noun plural roches moutonnées (ˈrəʊʃ ˌmuːtəˈneɪz)
a rounded mass of rock smoothed and striated by ice that has flowed over it
Word Origin for roche moutonnée
C19: French, literally: fleecy rock, from mouton sheep
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
[rôsh′ mōōt′n-ā′, mōō′tô-nā′]
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).
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.