noun
trojan
TROHD-zhuhn
noun
1
A type of malicious computer program disguised as something harmless or useful.
"The email attachment turned out to be a trojan that stole passwords."
adjective
1
Relating to the ancient city of Troy or its people.
"The story follows a Trojan prince during the fall of the city."
2
Showing great strength or endurance.
"She put in trojan effort to finish the marathon despite the injury."
How to Use Trojan
Learner’s notesIn plain EnglishMalware disguised as legitimate software, or (capitalized) relating to ancient Troy.
Common pairings
trojan horse
trojan virus
Word Forms
trojaned past tense, trojans plural, trojans singular
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Etymology
The malware sense comes from "Trojan horse," the deceptive wooden horse from the legend of the fall of Troy.