I. noun 1. a flat strip of land, raised bank, or terrace bordering a river or canal. 2. a path or grass strip beside a road. 3. an artificial ridge or embankment, such as one built as a defence against tanks. • berms of shovelled earth.
4. a narrow space between a ditch and the base of a parapet.
– origin early 18th cent. (denoting a narrow space): from French berme, from Dutch berm.