Plūm'ming, n.
[See PLUMB.] (Min.) The operation of finding, by means of a mine dial, the place where to sink an air-shaft, or to bring an adit to the work, or to find which way the lode inclines.
[See PLUMB.] (Min.) The operation of finding, by means of a mine dial, the place where to sink an air-shaft, or to bring an adit to the work, or to find which way the lode inclines.