grabenPronunciation: /ˈgrɑːb(ə)n/Definition of graben noun (plural same or grabens) Geology an elongated block of the earth’s crust lying between two faults and displaced downwards relative to the blocks on either side, as in a rift valley. Origin: late 19th century: from German Graben 'a ditch'graben in other Oxford dictionaries Definition of graben in the US English dictionary
