( n. . )
A level passage driven across the measures, or at right angles to veins which it is desired to reach; -- distinguished from the drift, or gangway, which is led along the vein when reached by the tunnel.
( n. . )
A level passage driven across the measures, or at right angles to veins which it is desired to reach; -- distinguished from the drift, or gangway, which is led along the vein when reached by the tunnel.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012