upcast(n = noun.artifact) - air passage consisting of a ventilation shaft through which air leaves a mine;
is a kind of air duct, air passage, airway
Cast up; thrown upward; as, with upcast eyes. Addison. [1913 Webster]
1. A cast; a throw. Shak. [1913 Webster]
2. The ventilating shaft of a mine out of which the air passes after having circulated through the mine; -- distinguished from the downcast. Called also
3. An upset, as from a carriage. [1913 Webster]
4. A taunt; a reproach. Sir W. Scott. [1913 Webster]
1. To cast or throw up; to turn upward. Chaucer. [1913 Webster]
2. To taunt; to reproach; to upbraid. [1913 Webster]
upcast, n. & v.
--n.
1 the act of casting up; an upward throw.
2 Mining a shaft through which air leaves a mine.
3 Geol. = UPTHROW.
--v.tr. (past and past part. upcast) cast up.
VB heighten, elevate, raise, lift, erect, set up, stick up, perch up, perk up, tilt up, rear, hoist, heave, uplift, upraise, uprear, upbear, upcast, uphoist, upheave, buoy, weigh mount, give a lift, exalt, sublimate, place on a pedestal, set on a pedestal, escalate 102, take up, drag up, fish up, dredge, stand up, rise up, get up, jump up, spring to one's feet, hold oneself, hold one's head up, drawn oneself up to his full height.