virus

  1. Noun.  (archaic) Venom, as produced by a poisonous animal etc.
  2. Noun.  (pathology, microbiology) 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.
  3. Noun.  (computing) A computer virus.

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This entry was last updated on RefTopia from its source on 3/20/2012.