computer virus

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vi•rus

(ˈvaɪ rəs)

n., pl. -rus•es.
1. an ultramicroscopic (20 to 300 nm in diameter), metabolically inert, infectious agent that replicates only within the cells of living hosts, mainly bacteria, plants, and animals: composed of an RNA or DNA core, a protein coat, and, in more complex types, a surrounding envelope.
2. a disease caused by a virus.
3. a corrupting influence on morals or the intellect; poison.
4. a segment of self-replicating code planted illegally in a computer program, often to damage or shut down a system or network.
[1590–1600; < Latin vīrus slime, poison; akin to ooze2]
vi′rus•like`, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.computer virus - a software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computercomputer virus - a software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computer; "a true virus cannot spread to another computer without human assistance"
malevolent program - a computer program designed to have undesirable or harmful effects
Translations
فيروس كمبيوتر
számítógépes vírus
computervirus
počítačový vírus
References in periodicals archive ?
After starting a residency in internal medicine at Yale, he left to take a staff position with the Rockefeller Foundation's International Virus Program in its laboratory in Belem, Brazil (now the Instituto Evandro Chagas).
The message is clear that you need to have a current virus program in place that is running on all machines and can be easily maintained to be effective," said Prudential's Tyminski.
Fourth, your virus program was not running or, if it was, it was out of date.