upcast n : air passage consisting of a ventilation shaft through which air leaves a mine
- Cast up; thrown upward; as, with upcast eyes. - Addison.
- (Bowling): A cast; a throw. - Shakespeare
- (Mining): The ventilating shaft of a mine out of which the air passes after having circulated through the mine; -- distinguished from the owncast. Called also upcast pit, and upcast shaft.
- (Scottish): An upset, as from a carriage.
- (Scottish): A taunt; a reproach. - Sir W. Scott
- To cast or throw up; to turn upward.
- (Scottish): To taunt; to reproach; to upbraid.