Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. One that amplifies, enlarges, or extends.
  • n. Electronics A device, especially one using transistors or electron tubes, that produces amplification of an electrical signal.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Anything that amplifies, or makes something larger or more intense.
  • n. An appliance or circuit that increases the strength of a weak electrical signal without changing the other characteristics of the signal.
  • n. An amp, specif. a particular type of speaker used to amplify voices and musical instruments at live performances.

from the GNU version of the Collaborative International Dictionary of English

  • n. One who or that which amplifies.

from The Century Dictionary and Cyclopedia

  • n. One who amplifies or enlarges.
  • n. A lens placed in the tube of a microscope between the object-glass and the eyepiece. See microscope.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. electronic equipment that increases strength of signals passing through it

Etymologies

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