Meanings
adjectivepumpless (not comparable)
- not comparableWithout a pump.
Between Paris and Lyons the substation rectifiers were multi-anode units with vacuum pumps, either water- or air-cooled (the pumpless type having come later into general use on the Continent than in Britain and being first used for main-line traction in France in 1953).
1963 September, “A decade of French electrification progress”, in Modern Railways, page 193
Origin
Cite this entry
APA
pumpless. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/pumpless
MLA
“pumpless.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pumpless. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “pumpless,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/pumpless.
Source: pumpless on Wiktionary, CC BY-SA 4.0.