annihilator

/əˈnaɪəˌleɪtər/
noun
  1. A person or thing that completely destroys or obliterates something.
    • The superhero was known as the annihilator of evil forces.
    • In the video game, the final boss is a giant annihilator that shoots lasers.
    • This new pesticide is an effective annihilator of garden pests.
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