Definition, Meaning & Synonyms

rotor-arm

noun
/ˈroʊ.tər.ɑːrm/
Definition
A rotor-arm is a component of an engine’s ignition system that distributes the electrical spark to the appropriate cylinder.
Examples
  • The mechanic replaced the faulty rotor-arm to improve engine performance.
  • During the service, they found that the rotor-arm was worn out.
  • A malfunctioning rotor-arm can cause misfiring in the engine.
Meaning
The rotor-arm helps ensure that the vehicle’s engine functions efficiently by directing the spark to the right place at the right time.
Synonyms
  • ignition rotor
  • distributor rotor
  • spark distributor