- any preventive preparation used to stimulate the body’s immune response against a specific disease, using either messenger RNA or killed or weakened bacteria or viruses to prepare the body to recognize a disease and produce antibodies.
- (no longer in technical use) the virus of cowpox, used in vaccination, obtained from pox vesicles of a cow or person.
- a software program that helps to protect against computer viruses, as by detecting them and warning the user.
- of or relating to vaccination.
- of or relating to vaccinia.
- of, relating to, or derived from cows.
- a suspension of dead, attenuated, or otherwise modified microorganisms (viruses, bacteria, or rickettsiae) for inoculation to produce immunity to a disease by stimulating the production of antibodies
- (originally) a preparation of the virus of cowpox taken from infected cows and inoculated in humans to produce immunity to smallpox
- of or relating to vaccination or vaccinia
- a piece of software designed to detect and remove computer viruses from a system
