( n. )
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.
( n. )
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.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012