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1. The mass of rock underlying a mineral deposit in a mine.
2. The underlying block of a fault having an inclined fault plane.
(Geological Science) the rocks on the lower side of an inclined fault plane or mineral vein. Compare hanging wall
1. the top of the rock stratum underlying a vein or bed of ore.
2. a mass of rock lying beneath a fault plane.
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|Noun||1.||footwall - the lower wall of an inclined fault|
inclined fault - a geological fault in which one side is above the other
wall - anything that suggests a wall in structure or function or effect; "a wall of water"; "a wall of smoke"; "a wall of prejudice"; "negotiations ran into a brick wall"