Camshaft

Pronunciation: /ˈkæmˌʃæft/

Camshaft (noun)

  1. A metal shaft in an engine that turns and moves parts to open and close the engine’s valves.
  2. A rotating part with shaped lobes that controls when valve movement happens during each engine cycle.

Examples

  • The camshaft controls the engine valve timing.
  • A worn camshaft can reduce engine valve control.