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See more synonyms for amp on Thesaurus.com
noun Electricity.
  1. ampere.
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Origin of amp1

First recorded in 1885–90; by shortening


  1. amplifier(def 2).
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verb (used with object)
  1. to excite or energize (usually followed by up): We were so amped up for the game that we forgot to eat.
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Origin of amp2

First recorded in 1960–65; by shortening


noun Slang.
  1. amputation.
  2. amputee.
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Origin of amp3

by shortening
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for amps

Contemporary Examples

Historical Examples

  • In this position we went full speed astern on the motors, 1,500 amps on each, and all the crew in the after-compartment.

  • You can only draw about four hundred amps off the thing, no matter how low you put the voltage.

    Damned If You Don't

    Gordon Randall Garrett

British Dictionary definitions for amps


  1. an ampere
  2. informal an amplifier
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  1. Australian informal to excite or become excited
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See also amp up


abbreviation for
  1. adenosine monophosphate
  2. Australian Mutual Provident Society
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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

Word Origin and History for amps



1886 as an abbreviation of ampere; 1967 as an abbreviation of amplifier.

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Online Etymology Dictionary, © 2010 Douglas Harper

amps in Medicine


  1. Adenosine monophosphate; a mononucleotide found in animal cells and reversibly convertible to ADP and ATP.adenine nucleotide adenylic acid
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

amps in Science


  1. Short for adenosine monophosphate. An organic compound that is composed of adenosine and one phosphate group. It is one of the nucleotides present in DNA and RNA, and is also the fundamental component of ATP and ADP. During certain cellular metabolic processes, AMP forms from ADP when the latter loses a phosphate group, and AMP forms ADP by acquiring a phosphate group. Chemical formula: C10H14N5O7P.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

amps in Culture



A unit of electric current (see also current). One ampere corresponds to a certain number of electrons passing a fixed point each second.

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A typical household's electrical supply includes a total of 120 to 200 amps; a typical house circuit carries 15 to 50 amps.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.