virus-e azdâyik, ~ râyângar
Fr.: virus informatique
A segment of self-replicating code planted illegally in a computer program, often to damage or shut down a system or network (Dictionary.com).
1) An ultramicroscopic (20 to 300 nm in diameter), metabolically
inert, infectious agent that replicates only within the cells of
living hosts, mainly bacteria, plants, and animals: composed of an
RNA or DNA core, a protein coat, and, in more complex types, a
surrounding envelope (Dictionary.com).
From L. virus "poison, sap of plants, slimy liquid, a potent juice," ultimately from PIE *ueis- "fluidity, slime, poison;" cf. Pers. bīš "a poisonous plant;" Mid.Pers. wiš "poison;" Av. viš-, viša- "poison;" Skt. visa- "venom, poison, poisonous;" L. viscum "sticky substance, birdlime;" Gk. ios "poison," ixos "mistletoe, birdlime;" O.C.S. višnja "cherry;" O.Irish fi "poison;" Welsh gwy "poison."