Longman Dictionary of Contemporary English homepage

light bulb

 noun
     
light bulb
Related topics: Daily Life, Technology
light bulb [countable]
DT the glass object inside a lamp that produces light and has to be replaced regularly [= bulb]
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary

Browse the dictionary