- When found outside of host cells, viruses exist as a protein coat or capsid, sometimes enclosed within a membrane.
- Such viruses enter the host cell and then rapidly multiply inside the cell before killing it.
- Bacteriophages fit the definition of parasite to a T. In many cases new viruses multiply inside a host until the bacterium simply rips apart.
- The most recent problem has been a virus and she comes into the tournament short on match play.
- Been off sick with a virus for like AGES!!!
- After some months when it became clear that my malady wasn't disappearing like a good virus, this burden fell on my husband.
- A computer virus or spyware application is sending us automated requests, and it appears that your computer or network has been infected.
- Hewlett-Packard has distributed printer drivers corrupted by a computer virus.
- A computer virus which affected the operation of Google yesterday is spreading like wildfire.
late Middle English (denoting the venom of a snake): from Latin, literally 'slimy liquid, poison'. The earlier medical sense, superseded by the current use as a result of improved scientific understanding, was 'a substance produced in the body as the result of disease, especially one that is capable of infecting others with the same disease'.