spark plug

• Pièce d'un moteur à combustion interne qui enflamme le mélange air-carburant en produisant une étincelle électrique. Au sens figuré, désigne également une personne qui dynamise ou motive un groupe.

A device in an internal combustion engine that ignites the fuel-air mixture by producing an electric spark. Informally, it can also refer to a person who energizes or motivates a group.

1. Engine componentB2formal

   A device in an internal combustion engine that ignites the fuel-air mixture by producing an electric spark.

   Bougie d'allumage

   • The mechanic replaced the old spark plugs to improve engine performance.
   • A faulty spark plug can cause the engine to misfire.
   • You should check the spark plugs regularly for wear and tear.

2. Energetic personC1informalamerican

   A person who is lively, energetic, and motivates others in a group or organization.

   Personne énergique et motivante

   • She is the spark plug of our sales team, always inspiring everyone.
   • He was the spark plug that got the project off the ground.
   • The new manager is a real spark plug for the department.