Pumpless
adj
adj ·Rare ·Advanced level
Definitions
Adjective
- 1 Without a pump. not-comparable
"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)."
Example
More examples"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)."
Etymology
From pump + -less.