Annihilation Definition

ə-nīə-lāshən
noun
The act or process of annihilating.
American Heritage
The condition of having been annihilated; utter destruction.
American Heritage
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.
American Heritage
The definition of an annihilation is the entire and complete destruction of a place, thing or group.
An example of an annihilation is the bombing of an entire town and the resulting murder of all the residents.
YourDictionary
The act of reducing to nothing, or nonexistence; or the act of destroying the form or combination of parts under which a thing exists, so that the name can no longer be applied to it; as, the annihilation of a corporation.
Wiktionary
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Other Word Forms of Annihilation

Noun

Singular:
annihilation
Plural:
annihilations

Origin of Annihilation

  • From Middle French annihilation, from Latin ad (“to") + nihil (“nothing").

    From Wiktionary

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