- Mining. the underside of the wall rock overlying a vein or bed of ore.Compare footwall(def 1).
- Geology. a mass of rock overhanging a fault plane.
Origin of hanging wall
First recorded in 1770–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for hanging wall
The two fault faces are known as the “hanging-wall” and the “foot-wall.”
- the rocks on the upper side of an inclined fault plane or mineral veinCompare footwall
- The block of rock lying above an inclined geologic fault plane. See more at fault. Compare footwall.
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