Definition of "vaccine" [vac•cine]

  • (noun) A preparation of a weakened or killed pathogen, such as a bacterium or virus, or of a portion of the pathogen's structure that upon administration stimulates antibody production or cellular immunity against the pathogen but is incapable of causing severe infection.
  • (noun) A preparation from the cowpox virus that protects against smallpox.
  • (noun) Computer Science A software program designed to detect and stop the progress of computer viruses.

Use "vaccine" in a sentence

  • "* obama: h1n1 vaccine 'strongly recommended'* pregnant women express fears over swine flu vaccine* cdc warns neurologists to watch for nerve disease after shots* h1n1 unlikely to mutate into' superbug ': US study* swine flu won't be as dangerous as we thought, uk official says* pfizer agrees record fraud fine* envirohealth: intl paper treads monsanto's path to' frankenforests'* more geo-engineering: can man-made 'volcanoes' slow down climate change?"
  • "But now the vaccine is almost here, the question is, “Do you want it?”"
  • "Immunity from legal suits in this case means if the vaccine is a suspected cause of death or injury, the law will not allow victims to sue the vaccine manufacturer."

Words like "vaccine"