• microorganism which functions as an infectious agent; computer program which is intended to be spread surreptitiously between computers and usually causes damage (computers)
• a virus is a kind of germ that can cause disease.
• in computer technology, a virus is a program that introduces itself into a system, altering or destroying the information stored in the system.
• use of viruses during war in order to cause disease in the enemy's population
• incurable immune-deficiency disease which is transferred via the sperm and bloodstream
• computer program designed to detect and repair computer viruses and protect against them
• (computers) non-destructive computer virus, computer program that behaves like a virus in some ways but does not cause damage to a system
• small computer program designed to damage a computer system upon activation
• intestinal virus related with human diseases (such as meningitis) that is similar to poliomyelitis but does not cause paralysis
• lethal virus, microscopic infective agent which causes a deadly disease; life threatening disease caused by such a virus
• virus which causes the fatal disease ebola
human immunodeficiency virus
• virus transmitted through bodily fluids which weakens the immune system and causes aids (incurable disease)
influenza virus• contagious disease which causes general pain and fever ...