roughing-in

roughing-in [ruhf-ing-in] Word Origin noun Building Trades.

1. the act or process of applying a base coat of plaster to a masonry surface.
2. the act or process of installing plumbing that will later be concealed.

Origin of roughing-in First recorded in 1815–25 Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019