amplifier

  • noun 1 an electronic device for increasing the strength of electrical signals. 2 a device of this kind combined with a loudspeaker, used to amplify electric guitars and other musical instruments.

Perform another search of the Compact Oxford English Dictionary

About this dictionary
The Compact Oxford English Dictionary of Current English contains 145,000 words, phrases, and definitions.
Find out more about Oxford's range of English dictionaries
Sign up for the AskOxford Word of the Day

Search the Little Oxford Dictionary of Quotations
Search the Concise Dictionary of First Names