Definition of virus – vi·rus | \ ˈvī-rəs \ plural viruses

  1. A submicroscopic agent that infects Living organisms, often causing disease, and that consist of a single or double strand of RNA or DNA surrounded by a protein coat. Unable to replicate without a host cell, viruses are typically not considered living organisms.
  2. A disease caused by a virus.
  3. A computer program or series of programmable commands that can replicate itself and that spreads by inserting copies of itself into other files or programs which users later transfer to other computers. Viruses usually have a harmful effect, either creating system anomalies or blocking certain vital functions from occurring and more permanent issues as in erasing and destroying all the data on a disk.
  4. An individual Living Organism in human form that has been programmed by commands or transformed by RNA or DNA, that copies and replicates their behaviour onto other Living Organisms and follows programs which later creates a harmful effect such as changing the natural behaviour of the mind and body, creating medical anomalies, causing disease and destroying the host environment.