amplifier

[am-pluh-fahy-er] /ˈæm pləˌfaɪ ər/
noun
1.
a person or thing that amplifies or enlarges.
2.
an electronic component or circuit for amplifying power, current, or voltage.
Origin
1540-50; amplify + -er1
Examples from the web for amplifier
  • By using an amplifier device, they're able to push radar waves through walls up to eight inches thick.
  • Such a signal can be observed easily with a circuit containing a transconductance amplifier and a peak detector.
  • Glutamate pulses are applied and data are collected with a patch clamp amplifier and digitized.
  • The cap is connected to an amplifier, which is in turn connected to a computer that processes the electrical signals.
  • Hair-sized sensors placed in the brain translate those signals to an amplifier.
  • The probe, sensitive enough to pick up electrical signals from a single cell, was wired to a laptop computer and amplifier.
  • Serious money is to be made if the patient can wear a signal amplifier suit.
  • Each of their systems contains a signal processor, an amplifier, and a platelike device that shoots out beams of ultrasound.
  • We therefore included a dummy strain gauge and amplifier, responsive to electrical artifacts but not to strain.
  • And he actually leaned me up against this amplifier.
British Dictionary definitions for amplifier

amplifier

/ˈæmplɪˌfaɪə/
noun
1.
an electronic device used to increase the strength of the signal fed into it
2.
such a device used for the amplification of audio frequency signals in a radio, etc
3.
(photog) an additional lens for altering the focal length of a camera lens
4.
a person or thing that amplifies
Word Origin and History for amplifier
n.

1540s; agent noun from amplify. Electronic sense is from 1914; shortened form amp is from 1967.

amplifier in Culture

amplifier definition


In electronics, a device that takes a small electric signal and converts it into a large one. Amplifiers are used in stereo systems, electric guitars, and loudspeakers.