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

  • n. A computer virus that remains hidden until it is triggered when certain specific conditions are met.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A piece of code intentionally inserted into a software system that will set off a malicious function when specified conditions are met.

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

  • n. a set of instructions inserted into a program that are designed to execute (or `explode') if a particular condition is satisfied; when exploded it may delete or corrupt data, or print a spurious message, or have other harmful effects


Sorry, no etymologies found.


Sorry, no example sentences found.

Wordnik is becoming a not-for-profit! Read our announcement here.


Log in or sign up to get involved in the conversation. It's quick and easy.

  • If you damage someone's computer -- whether by attacking it with a hammer or crippling the program with a logic bomb -- it's... a crime.

    Independent 21 Sept. 1988, p. 2

    February 29, 2008