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Definition

Virus

Virus is an obligate intracellular parasitic microorganism that is smaller than bacteria. Most viruses can pass through filters that retain bacteria.

Webster Dictionary Meaning

1. Virus
- Contagious or poisonous matter, as of specific ulcers, the bite of snakes, etc.; -- applied to organic poisons.
- 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.
- Fig.: Any morbid corrupting quality in intellectual or moral conditions; something that poisons the mind or the soul; as, the virus of obscene books.
Category: Microbiology
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