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.