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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 of amplifier
1540-1550
1540-50; amplify + -er1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for amplifier
n.

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

Online Etymology Dictionary, © 2010 Douglas Harper
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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.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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16
19
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