brain wave

• Soudaine idée ingénieuse ou illumination qui vient à l'esprit de façon inattendue, résolvant souvent un problème ou stimulant la créativité.

A sudden clever idea or insight that comes to mind unexpectedly, often solving a problem or sparking creativity.

1. Sudden ideaB2informal

   A sudden clever idea or inspiration.

   Illumination soudaine

   • I had a brain wave and solved the puzzle instantly.
   • She had a brain wave about how to improve the design.
   • His brain wave saved the company a lot of money.

2. Electrical activity in the brainB2formal

   An electrical signal produced by the brain, measured in an EEG.

   onde cérébrale

   • The doctor studied the patient's brain waves during sleep.
   • Brain waves can indicate different states of consciousness.
   • The EEG recorded abnormal brain wave patterns.