supercharger

noun

1. An inlet air compressor for an internal combustion engine (either Otto or Diesel cycle).

   “The grey Bentley convertible, the 1933 4½-litre with the Amherst-Villiers supercharger, had been brought round a few minutes earlier from the garage where he kept it and the engine had kicked directly he pressed the self-starter.”

2. An inlet air compressor for an internal combustion engine (either Otto or Diesel cycle).
3. A device that can rapidly recharge a battery cell/pack.