virus plural
vi·rus
The plural form of virus is viruses
V vDefinitions
- noun plural virus 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. 1
- noun plural virus Informal. a viral disease. 1
- noun plural virus a corrupting influence on morals or the intellect; poison. 1
- noun plural virus a segment of self-replicating code planted illegally in a computer program, often to damage or shut down a system or network. 1