[ amp ]
See synonyms for amp on

Origin of amp

First recorded in 1880–85; by shortening

Other definitions for amp (2 of 5)

[ amp ]

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.

Origin of amp

First recorded in 1945–50; by shortening

Other definitions for amp (3 of 5)

[ amp ]


Origin of amp

First recorded in 1925–30; by shortening

Other definitions for AMP (4 of 5)


  1. a white, crystalline, water-soluble nucleotide, C10H12N5O3H2PO4, obtained by the partial hydrolysis of ATP or of ribonucleic acid, yielding on hydrolysis adenine, ribose, and orthophosphoric acid.

Origin of AMP

First recorded in 1950–55; a(denosine) m(ono-)p(hosphate)

Other definitions for amp. (5 of 5)


  1. amperage.

  2. ampere; amperes. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use amp in a sentence

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

  • Otherwise you must multiply volts times amps to get the wattage.

British Dictionary definitions for amp (1 of 3)


/ (æmp) /

  1. an ampere

  2. informal an amplifier

  1. Australian informal to excite or become excited

British Dictionary definitions for AMP (2 of 3)


abbreviation for
  1. adenosine monophosphate

  2. Australian Mutual Provident Society

British Dictionary definitions for amp. (3 of 3)


abbreviation for
  1. ampere

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

Scientific definitions for AMP


[ ā′ĕm-pē ]

  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.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for amp


[ (am-peer) ]

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

Notes for amp

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.