up·cast /ˈʌpˌkæst/
上拋,向上投擲之物,排氣豎坑(a.)向上拋的,向上的(vi.)向上投擲,向上拋
Up·cast a. Cast up; thrown upward; as, with upcast eyes.
Up·cast n.
1. Bowling A cast; a throw.
2. Mining. The ventilating shaft of a mine out of which the air passes after having circulated through the mine; -- distinguished from the downcast. Called also upcast pit, and upcast shaft.
3. An upset, as from a carriage. [Scot.]
4. A taunt; a reproach. [Scot.]
Up·cast v. t.
1. To cast or throw up; to turn upward. [Obs.]
2. To taunt; to reproach; to upbraid. [Scot.]
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upcast
n : air passage consisting of a ventilation shaft through which
air leaves a mine