Meanings
present singular third person top-drains · participle present top-draining · participle past top-drained · past top-drained
- To drain water or fluid from the top of a water heater or heating system, rather than from the bottom.
Origin
Cite this entry
top-drain. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/top-drain
“top-drain.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/top-drain. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “top-drain,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/top-drain.
Source: top-drain on Wiktionary, CC BY-SA 4.0.