amplifier Hear it!

amplifier definition

am·pli·fier (am′plə fī′ər)

noun

  1. a person or thing that amplifies
  2. Electronics a device that increases the strength of a weak electrical signal without changing the other characteristics of the signal

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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