from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A native or inhabitant of ancient Troy.
  • n. A person of courageous determination or energy.
  • adj. Of or relating to a celestial body, especially an asteroid, that is in one of the Lagrangian points of a two-body system. Used especially of any of a group of asteroids that orbit at Jupiter's distance from the sun, but 60° ahead of or behind the planet.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A native or inhabitant of the ancient city of Troy.
  • n. A student (especially an athlete) of the University of Southern California.
  • n. A Trojan asteroid.
  • n. An object residing at a Trojan point.
  • n. A very widespread and popular form of malware or computer virus.
  • adj. Of, or relating to, the famed city of Troy or its inhabitants.
  • adj. Of, or relating to, a Trojan point.
  • adj. Of, or relating to, a certain type of malware.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Of or pertaining to ancient Troy or its inhabitants.
  • adj. One who shows the pluck, endurance, determined energy, strength, or the like, attributed to the defenders of Troy; -- used chiefly or only in the phrase like a Trojan.

from The Century Dictionary and Cyclopedia

  • Of or relating to ancient Troy, a celebrated city in Mysia, Asia Minor.
  • n. An inhabitant of Troy.
  • n. A plucky or determined fellow; one who fights or works with a will.
  • n. A boon companion; an irregular liver: sometimes used loosely as a term of opprobrium.
  • n. plural In entomology, a name given by Linnæus to certain butterflies, mostly tropical and now generally included in the genus Papilio, characterized by their velvety-black colors with crimson spots on the wings and breast.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a native of ancient Troy
  • n. a program that appears desirable but actually contains something harmful
  • adj. of or relating to the ancient city of Troy or its inhabitants


from The American Heritage® Dictionary of the English Language, 4th Edition

Middle English, from Latin Trōiānus, from Trōia, Troy, from Greek, from Trōs, the mythical founder of Troy.
From the names of heroes of the Trojan War used for these asteroids.


  • See Phrack xx-x,  "Unix Trojan Horses," for info on how to create a Trojan horse which in turn creates a trap door into someone's account.]

    Phrack Issue #15 Elric of Imrryr's Issue

  • Today, the term Trojan horse refers to a computer program disguised as something benign, such as a game, that attacks your computer.

    Archive 2004-05-01

  • The term Trojan is taken from the wooden horse used by the Greeks to sneak inside Troy and capture it.

    IT & Security Portal» IT-Observer

  • Symantec warns that a file called "Arucer. dll", which it identifies as Trojan-Arugizer, that is installed on compromised systems is capable of all manner of mischief.

    The Register

  • When written the word Trojan should be "Trojan" when referring to Troy State University, its teams, students, etc., but without the quotation marks when referring to citizens of Troy and students, teams etc. of the Troy City Schools --- Troy's Real Trojans.

    The Troy Messenger

  • The episode is titled "Trojan Horse," which could be a clue to what goes down. ...

    Matt's Guide to Wednesday TV: Halloween Hilarity and Horror, South Park and More!

  • It was designed to install the ZeuS banking Trojan, which, along with the Clampi banking Trojan, is commonly used to siphon funds, via wire transfers, from small business banking accounts.

    Personalized spam attacks target small businesses

  • The team is known as the Trojan Horsemen and its website says Jack "Flash" Mangan is part of the alternate wing.

    WWII-Era Plane Crashes, Burns at W.Va. Air Show

  • The T-28 aerobatic team is known as the Trojan Horsemen and its website says Jack "Flash" Mangan is part of the alternate wing.

    One Killed in West Virginia Air Show Crash

  • The likelihood of any ordinary person getting his or her PC infected by a banking Trojan is so great that Gartner's Litan tells acquaintances who run small businesses to switch from commercial online accounts to an individual consumer account.

    Cybercrooks stalk small businesses that bank online


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