ˈfelzənˌme(ə)r noun
( -s )
Etymology: German, from felsen, fels rock (from Old High German felis ) + meer sea (from Old High German meri ) — more at fell (mountain), marine
: an assemblage of angular and subangular rock fragments completely mantling the surface and commonly present in mountainous regions above timberline where slopes are not too steep to retain the loose debris