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Definition of Virus
1. Noun. (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.
Specialized synonyms: Arborvirus, Arbovirus, Bacteriophage, Phage, Plant Virus, Animal Virus, Slow Virus, Tumor Virus, Vector
Examples of category: Virion, Atrophic Arthritis, Rheumatism, Rheumatoid Arthritis, Inoculant, Inoculum
Category relationships: Virology
Derivative terms: Viral
2. Noun. A harmful or corrupting agency. "The virus of jealousy is latent in everyone"
3. Noun. 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"
Definition of Virus
1. n. Contagious or poisonous matter, as of specific ulcers, the bite of snakes, etc.; -- applied to organic poisons.
2. n. Contagious or poisonous matter, as of specific ulcers, the bite of snakes, etc.; -- applied to organic poisons.
Definition of Virus
1. Noun. (archaic) Venom, as produced by a poisonous animal etc. ¹
2. Noun. (pathology microbiology virology) A submicroscopic infectious organism, now understood to be a non-cellular structure consisting of a core of DNA or RNA surrounded by a protein coat. It requires a living cell to replicate, and often causes disease in the host organism. ¹
3. Noun. (computing) A computer virus. ¹
¹ Source: wiktionary.com
Definition of Virus
1. any of a class of submicroscopic pathogens [n -ES]
Medical Definition of Virus
1.