noun (plural roches moutonnées pronunc. same)Geology
A small bare outcrop of rock shaped by glacial erosion, with one side smooth and gently sloping and the other steep, rough, and irregular.
More example sentences
- This ice flow is also associated with striae and roches moutonnées in the valley north of Cadair Idris.
mid 19th century: French, literally 'fleecy rock'.
Definition of roche moutonnée in:
- The US English dictionary