light bulb

• Dispositif qui produit de la lumière lorsqu'il est traversé par un courant électrique, généralement constitué d'une ampoule en verre contenant un filament ou une diode électroluminescente. S'emploie aussi métaphoriquement pour désigner un moment soudain d'inspiration ou de compréhension.

A device that produces light when electricity passes through it, typically consisting of a glass bulb containing a filament or LED. Also used metaphorically to describe a sudden moment of inspiration or understanding.

1. Electric light sourceA1formal

   A glass bulb containing a filament or other light-emitting element that produces light when electricity passes through it.

   ampoule électrique

   • I need to replace the light bulb in the kitchen.
   • The light bulb flickered before it went out.
   • She switched on the lamp and the light bulb glowed brightly.

2. Sudden ideaB1informal

   A sudden moment of inspiration or understanding, often depicted as a light bulb appearing above a character's head in cartoons.

   Idée lumineuse

   • He had a light bulb moment and solved the puzzle.
   • A light bulb went off in her head when she saw the solution.
   • The inventor described his discovery as a light bulb idea.