upcast
(up′kast′)
noun
- something cast or thrown up
- Geol. upthrow (sense )
- Mining a ventilating shaft for returning air to the surface
adjective
- thrown upward
- directed upward
See upcast in American Heritage Dictionary 4
adjective Directed or thrown upward: upcast volcanic ash.
noun- Something cast upward.
- A ventilating shaft, as in a mine.
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