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1. (n.) virus
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. virus
a disease caused by a virus.
3. virus
a corrupting influence on morals or the intellect; poison.
4. virus
a segment of self-replicating code planted illegally in a computer program, often to damage or shut down a system or network.
Etymology: (1590–1600; < L vīrus slime, poison; akin to ooze2)
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| Definition of 'VIRUS' |
Princeton's WordNet |
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1. (noun) virus
(virology) ultramicroscopic infectious agent that replicates itself only within cells of living hosts; many are pathogenic; a piece of nucleic acid (DNA or RNA) wrapped in a thin coat of protein
2. (noun) virus
a harmful or corrupting agency
"bigotry is a virus that must not be allowed to spread"; "the virus of jealousy is latent in everyone"
3. (noun) virus, computer 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"
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1. (noun) virus
a tiny living organism that causes illness or disease
I got a stomach virus.
2. virus
a program designed to damage data in a computer
a computer virus; virus protection software
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| Definition of 'VIRUS' |
Webster Dictionary |
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1. (verb) VIRUS
contagious or poisonous matter, as of specific ulcers, the bite of snakes, etc.; -- applied to organic poisons
2. (verb) VIRUS
the special contagion, inappreciable to the senses and acting in exceedingly minute quantities, by which a disease is introduced into the organism and maintained there
3. (verb) VIRUS
fig.: Any morbid corrupting quality in intellectual or moral conditions; something that poisons the mind or the soul; as, the virus of obscene books
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| Definitions of 'VIRUS' |
The New Hacker's Dictionary |
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1. VIRUS
[from the obvious analogy with biological viruses, via SF] A cracker
program that searches out other programs and ‘infects’ them by
embedding a copy of itself in them, so that they become Trojan
horses. When these programs are executed, the embedded virus
is executed too, thus propagating the ‘infection’. This
normally happens invisibly to the user. Unlike a
worm, a virus cannot infect other computers without
assistance. It is propagated by vectors such as humans trading programs
with their friends (see SEX). The virus may do
nothing but propagate itself and then allow the program to run normally.
Usually, however, after propagating silently for a while, it starts doing
things like writing cute messages on the terminal or playing strange tricks
with the display (some viruses include nice display
hacks). Many nasty viruses, written by particularly perversely
minded crackers, do irreversible damage, like nuking
all the user's files.In the 1990s, viruses became a serious problem, especially among
Windows users; the lack of security on these machines enables viruses to
spread easily, even infecting the operating system (Unix machines, by
contrast, are immune to such attacks). The production of special
anti-virus software has become an industry, and a number of exaggerated
media reports have caused outbreaks of near hysteria among users; many
lusers tend to blame everything
that doesn't work as they had expected on virus attacks. Accordingly, this
sense of virus has passed not only
into techspeak but into also popular usage (where it is often incorrectly
used to denote a worm or even a Trojan
horse). See phage; compare
back door; see also Unix
conspiracy.
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Sense: any of various types of germs that are a cause of disease.
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Afrikaans: virus |
Arabic: فيروس، جُرْثومَه |
Bulgarian: вирус |
Brazilian: vírus |
Czech: virus |
German: das Virus |
Danish: virus |
Greek: ιός |
Spanish: virus |
Estonian: viirus |
Farsi: ویروس |
Finnish: virus |
French: virus |
Hebrew: וִירוּס |
Hindi: छूत के रोग पैदा करने वाले |
Croatian: virus |
Hungarian: vírus |
Indonesian: virus |
Icelandic: veira, vírus |
Italian: virus |
Japanese: ウイルス |
Korean: 바이러스 |
Lithuanian: virusas |
Latvian: vīruss |
Malay: virus |
Dutch: virus |
Norwegian: virus |
Polish: wirus |
Persian: ویروس |
Pashto: وښ، زهر: وښ لرونكى ماده، |
Portuguese: vírus |
Romanian: virus |
Russian: вирус |
Slovak: vírus |
Slovenian: virus |
Serbian: virus |
Swedish: virus |
Thai: เชื้อไวรัส |
Turkish: virüs |
Taiwanese: 病毒 |
Ukrainian: вірус |
Urdu: جرثومہ |
Vietnamese: vi rút |
Chinese: 病毒 |
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