bermPronunciation: /bəːm/Definition of berm noun a flat strip of land, raised bank, or terrace bordering a river or canal. a path or grass strip beside a road. an artificial ridge or embankment, such as one built as a defence against tanks: berms of shovelled earth a narrow space between a ditch and the base of a parapet. Origin: early 18th century (denoting a narrow space): from French berme, from Dutch bermberm in other Oxford dictionaries Definition of berm in the US English dictionary