vacuum servo

noun

a servomechanism that is operated by the lowering of pressure in the intake duct of an internal-combustion engine

Nearby words

  1. vacuum forming,
  2. vacuum frame,
  3. vacuum gauge,
  4. vacuum pan,
  5. vacuum pump,
  6. vacuum tube,
  7. vacuum-pack,
  8. vacuum-packed,
  9. vacuumize,
  10. vad

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012