Roche moutonnée, (French: “fleecy rock”) English sheepback, or sheep rock, glaciated bedrock surface, usually in the form of rounded knobs.The upstream side of a roche moutonnée has been subjected to glacial scouring that has produced a gentle, polished, and striated slope; the downstream side has been subjected to glacial plucking that has resulted in a steep, irregular, and jagged slope. Pronunciation: (rōsh' mt"n-ā' Fr. Roche moutonnée definition is - an elongate rounded ice-sculptured hillock of bedrock. A small bare outcrop of rock shaped by glacial erosion, with one side smooth and gently sloping and the other steep, rough, and irregular. IPA : /ʁɔʃ/ roche moutonnée: Meaning and Definition of. Also called ; See more. The upstream surface is often marked with striations. ... roche moutonnée … Find definitions for: roche mou•ton•née. a bare hummock of rock, usually smoothed on the upstream side and grooved on the other by glacial actionOrigin of roche … Compare Italian rocca, Spanish roca, as well as English rock and Breton roc'h. Une petite élévation, où se trouvent des bancs en bois, représente un bon exemple d'une entité appelée roche moutonnée (d'après sa forme de mouton couché). nées′ Geol. Roche moutonnée near Myot Hill, Scotland In glaciology , a roche moutonnée (or sheepback ) is a rock formation created by the passing of a glacier . Geol. From Old French roche (variants: roce, roke, roque), from Medieval Latin rocca, from Vulgar Latin *rocca, of uncertain origin, probably Celtic and most likely pre-Latin. nées An elongate mound of bedrock worn smooth and rounded by glacial abrasion. Cnapan a’ Mheirlich, Glen Avon. Roche Moutonnée . In glaciology, a roche moutonnée (or sheepback) is a rock formation created by the passing of a glacier.The passage of glacier ice over underlying bedrock often results in asymmetric erosional forms as a result of abrasion on the 'stoss' (up-ice) side of the rock and plucking on the 'lee' (down-ice) side. Whalebacks are sister forms. a rounded, glacially eroded rock outcrop, usually one of a group, resembling a sheep's back. Glacier erosion has produced this streamilined bedrock mass projecting above the waters of Glacier Bay, Glacier Bay National Park, Alaska. Pronunciation . Definition: A roche moutonnée is a rock hill shaped by the passage of ice to give a smooth up-ice side and a rough, plucked and cliff-girt surface on the down-ice side. Roche moutonnée definition, a rounded, glacially eroded rock outcrop, usually one of a group, resembling a sheep's back. An elongated, rounded, asymmetrical, bedrock knob produced by glacier erosion. : The small rise with wooden benches represents a good example of a glacial erosion feature known as roche moutonée (' sheep rock'). rôsh m-tô-nā'), — Geol. It has a gentle slope on its up-glacier side and a steep- to vertical-face on the down-glacier side. : Ces paysages de "roches moutonnées" sont typiques de l'activité glaciaire.