Plumbing
Pronunciation : Plumb"ing
Part of Speech : n.
Definition : 1. The art of casting and working in lead, and applying it to building purposes; especially, the business of furnishing, fitting, and repairing pipes for conducting water, sewage, etc. Gwilt.
2. The lead or iron pipes, and other apparatus, used in conveying water, sewage, etc., in a building.
Source : Webster's Unabridged Dictionary, 1913