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- DictionaryAn·ni·hi·la·tion/əˌnīəˈlāSHən/
noun
- 1. complete destruction or obliteration: "the threat of global annihilation"
- 2. the conversion of matter into energy, especially the mutual conversion of a particle and an antiparticle into electromagnetic radiation.
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Also called pair annihilation. the process in which a particle and antiparticle unite, annihilate each other, and produce one or more photons. Compare positronium . the conversion of rest mass into energy in the form of electromagnetic radiation .
The meaning of ANNIHILATION is the state or fact of being completely destroyed or obliterated : the act of annihilating something or the state of being annihilated. How to use annihilation in a sentence.
5 days ago · 1. the act or an instance of annihilating. 2. the state of being annihilated; extinction; destruction. 3. Physics. a. Also called: pair annihilation. the process in which a particle and antiparticle unite, annihilate each other, and produce one or more photons.
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. a. The act or process of annihilating. b. The condition of having been annihilated; utter destruction. 2. Physics The phenomenon in which a particle and an antiparticle, such as an electron and a positron, meet and are converted to a combination of energy or energetic particles approximately equivalent to the sum of their masses.
From Longman Dictionary of Contemporary English an‧ni‧hi‧late /əˈnaɪəleɪt/ verb [ transitive] 1 to destroy something or someone completely Just one of these bombs could annihilate a city the size of New York. 2 to defeat someone easily and completely in a game or competition Tyson annihilated his opponent in the first round. —annihilation /əˌnaɪ...
What does the noun annihilation mean? There are seven meanings listed in OED's entry for the noun annihilation. See ‘Meaning & use’ for definitions, usage, and quotation evidence. annihilation has developed meanings and uses in subjects including. Christianity (early 1600s) military (mid 1600s) sport (1900s) particle physics (1900s)
