plumming

English

Verb

plumming

1. present participle and gerund 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.
2. (photography) A plum-colored distortion of prints.

References

• “plumming”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.