graben(redirected from Gräben)
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A usually elongated depression between geologic faults.
(Physical Geography) an elongated trough of land produced by subsidence of the earth's crust between two faults
[C19: from German, from Old High German graban to dig]
a portion of the earth's crust, bounded on at least two sides by faults, that has dropped downward in relation to adjacent portions.
[1895–1900; < German: ditch]