bulb

• Objet généralement en verre, de forme arrondie, qui produit de la lumière lorsqu'un courant électrique le traverse, ou organe souterrain arrondi de certaines plantes, servant de réserve de nutriments.

A noun referring to a rounded, typically glass, object that produces light when electricity passes through it, or a similar rounded underground storage organ of a plant.

1. Light sourceA2formal

   A glass device that produces light when electricity passes through it.

   Ampoule électrique

   • The light bulb in the kitchen needs to be replaced.
   • She screwed a new bulb into the lamp.
   • Energy-saving bulbs last longer than traditional ones.

   Synonymeslamplight bulb

2. Plant partB1formal

   A rounded underground storage organ of some plants, from which new growth emerges.

   Bulbe (organe souterrain)

   • Tulips grow from bulbs planted in the autumn.
   • She bought a bag of daffodil bulbs for the garden.
   • The bulb stores nutrients for the plant during winter.