American English

Definition of Trojan horse noun from the Oxford Advanced American Dictionary


    Trojan horse

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  1. 1a person or thing that is used to trick an enemy in order to achieve a secret purpose
  2. 2(computing) a computer program that seems to be helpful but that is, in fact, designed to destroy data, etc. From the story in which the ancient Greeks hid inside a hollow wooden statue of a horse in order to enter the city of their enemies, Troy.
See the Oxford Advanced Learner's Dictionary entry: Trojan horse