Meanings
plural washout plugs
- A small mudhole used for washing out a steam boiler, usually screwed into a taper thread, rather than being held by clamps.
Cite this entry
washout plug. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/washout%20plug
“washout plug.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/washout%20plug. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “washout plug,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/washout%20plug.
Source: washout plug on Wiktionary, CC BY-SA 4.0.