annihilation

noun

an·​ni·​hi·​la·​tion ə-ˌnī-ə-ˈlā-shən How to pronounce annihilation (audio)
plural annihilations
1
: the state or fact of being completely destroyed or obliterated : the act of annihilating something or the state of being annihilated
The late 1940s and '50s were so pervaded by a general fear of nuclear annihilation that the era was known as the Age of Anxiety.Charles Krauthammer
For a literary culture that fears it is on the brink of total annihilation, we are awfully cavalier about the Great Male Novelists of the last century.Katie Roiphe
… few experts believe that either regime would risk annihilation by actually launching a nuke in anger.Michael Elliott
The Cretaceous Extinction, whatever its cause, was one of the two most awesome annihilations of life in the history of the world.John McPhee
2
physics : the combination of a particle and its antiparticle (such as an electron and a positron) that results in the subsequent total conversion of the particles into energy
Both the creation and annihilation of antimatter have been observed in nuclear accelerators (atom-smashers).Harding E. Smith
The annihilation reactions are the most efficient sources of energy known, for in them the entire mass of both particles is converted into pure energy.George Greenstein

Examples of annihilation in a Sentence

idealists who seek the annihilation of all forms of prejudice
Recent Examples on the Web No, Europe’s bravest patriots are the Ukrainians — fighting and dying to save their country from annihilation by Putin. Jay Nordlinger, National Review, 18 Sep. 2024 To understand why this new arms race is dangerous, look back at the last one: The United States and the Soviet Union together amassed more than 60,000 nuclear warheads in a standoff that threatened mutual, possibly global, annihilation. Editorial Board, Washington Post, 17 June 2024 As one crisis fades, another emerges: the Cold War’s fear of nuclear annihilation has given way to climate change anxiety. Cornelia C. Walther, Forbes, 17 Sep. 2024 Russia’s low-grade attacks are accompanied by threats of nuclear annihilation, both by Kremlin officials and by pundits on state television. Ben Taub, The New Yorker, 9 Sep. 2024 See all Example Sentences for annihilation 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'annihilation.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

circa 1526, in the meaning defined at sense 1

Time Traveler
The first known use of annihilation was circa 1526

Dictionary Entries Near annihilation

Cite this Entry

“Annihilation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/annihilation. Accessed 28 Sep. 2024.

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