[ amp ]
See synonyms for amp on

Origin of amp

First recorded in 1880–85; by shortening

Words Nearby amp

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. 2024

How to use amp in a sentence

  • amp life was pleasant, aside from the perpetual drilling, marching and countermarching.

    The Blue and The Gray | A. R. White
  • This fact is shown clearly by tests made to determine the time required to discharge a 100 amp.

  • The amp, speakers, and A/V switcher were all missing from her home theater.

    Makers | Cory Doctorow
  • He was certain his shout overmodulated every amp tube in the entire World City viewer system.

    Brink of Madness | Walter J. Sheldon
  • Us Goshen people kind o' kept together when we set down in the amp'itheater.

    Aunt Jane of Kentucky | Eliza Calvert Hall

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.