| 释义 |
footwall
\ˈ ̷ ̷ˌ ̷ ̷\ noun
1. : the lower or underlying wall of a vein, ore deposit, or coal seam in a mine : the wall upon which a miner stands
2. : the lower wall of an inclined fault; also : the entire mass of rock below an inclined fault — opposed to hanging wall |