bulb

US /bʌlb/

UK /bʌlb/

B1

noun

  • A round electronic device that produces light
  • A glass globe containing a wire that produces light when electricity passes through it.
  • Onion-shaped part from which a plant grows
  • A rounded or swelling part of something.

Examples

My camera needs a new flash bulb.

I think the bulb over the sink is going to go. It's been flickering all evening.