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[uh-nahy-uh-ley-shuh n] /əˌnaɪ əˈleɪ ʃən/
an act or instance of annihilating, or of completely destroying or defeating someone or something:
the brutal annihilation of millions of people.
the state of being annihilated; total destruction; extinction:
fear of nuclear annihilation.
  1. Also called pair annihilation. the process in which a particle and antiparticle unite, annihilate each other, and produce one or more photons.
    Compare positronium.
  2. the conversion of rest mass into energy in the form of electromagnetic radiation.
Origin of annihilation
1630-40; (< F) < Late Latin annihilātiōn- (stem of annihilātiō). See annihilate, -ion Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for annihilation
Contemporary Examples
Historical Examples
  • Itll take that long for us to arrange the annihilation of the range area.

    The Variable Man Philip K. Dick
  • Perhaps there may also be the idea of collective responsibility for his annihilation.

    Folkways William Graham Sumner
  • Only one way is open: the road which leads forward, the road to annihilation.

    mile Verhaeren Stefan Zweig
  • Thus the annihilation of the perceptible involves that of perception.

    The Categories Aristotle
  • Nothing could be more propitious for the execution of his plans; the annihilation of the woman who had wrecked his life.

    When Dreams Come True Ritter Brown
British Dictionary definitions for annihilation


total destruction
the act of annihilating
(physics) the destruction of a particle and its antiparticle when they collide. The annihilation of an electron with a positron generates two or, very rarely, three photons of annihilation radiation. The annihilation of a nucleon with its antiparticle generates several pions
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 annihilation

1630s, from Middle French annihilation (restored from Old French anichilacion, 14c.), or directly from Late Latin annihilationem (nominative annihilatio), noun of action from past participle stem of annihilare (see annihilate).

Online Etymology Dictionary, © 2010 Douglas Harper
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