Longman Dictionary of Contemporary English homepage

alternating current

noun
     
Related topics: Electricity
alternating current [uncountable]
TPE AC a flow of electricity that changes direction regularly and quickly [↪ direct current]

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