plumming

English

Verb

plumming

  1. present participle of plum

Noun

plumming (uncountable)

  1. (mining) The operation of finding, by means of a mine dial (compass), the place where to sink an air shaft, or to bring an adit to the work, or to find which way the lode inclines.

References
  • plumming in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
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