|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|
|Related terms:||microorganism infectious_agent plant_virus animal_virus bacteriophage tumor_virus slow_virus arborvirus rheumatoid_arthritis virion inoculant virology|
|2.||[ noun ] 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 ] (computer science) 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"