Plumming

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Plumming \Plum"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.
     [1913 Webster]