Definition of vaccine in English:

vaccine

noun

Medicine
  • 1A substance used to stimulate the production of antibodies and provide immunity against one or several diseases, prepared from the causative agent of a disease, its products, or a synthetic substitute, treated to act as an antigen without inducing the disease.

    ‘there is no vaccine against HIV infection’
    • ‘In Africa, private philanthropy is buying vaccines for measles and hepatitis.’
    • ‘The advent of hepatitis A virus vaccines means that protection may be provided by active immunisation.’
    • ‘These children show few adverse reactions to routine vaccinations, including live vaccines.’
    • ‘Part of the money will be used to fund vaccines and immunisation, which will save at least 5m lives by 2015.’
    • ‘Developing an effective vaccine against HIV has proven to be a difficult task.’
    • ‘Inactivated influenza vaccine contains noninfectious killed viruses and cannot cause influenza.’
    • ‘Such infants should receive hepatitis B vaccine shortly after birth and complete their immunization according to a particular schedule.’
    • ‘The goal, however, is to develop an effective malaria vaccine.’
    • ‘THE MMR jab is a triple vaccine protecting against measles, mumps and rubella.’
    • ‘Malaria is still a global problem and there is no vaccine for this condition.’
    • ‘Immunisation with the influenza vaccine is recommended for asthmatic people.’
    • ‘They have linked the MMR vaccine with autism and the development of inflammatory bowel disease in adult life.’
    • ‘Unlike the early influenza vaccines, today's vaccines cause few side effects.’
    • ‘In fact, the aim of the study was to test the toxicity and side effects of the vaccine.’
    • ‘The risk of a vaccine causing serious harm, or death, is extremely small.’
    • ‘They have proved that a vaccine which immunises against the disease is more likely to work in humans.’
    • ‘Until recently, only inactivated influenza vaccine administered by injection was available for use in the United States.’
    • ‘But what would happen if the vaccine only protected a person for 25 years?’
    • ‘He had his first seizure within hours of receiving a vaccine for diphtheria, tetanus and whooping cough.’
    • ‘The boy survived and Pasteur knew that he had found a vaccine for rabies.’
    1. 1.1Computing
      A program designed to detect computer viruses and inactivate them.
      • ‘Do you have problem with your computer vaccine when it's service period is over?’
      • ‘A vaccine should consume fewer network resources than the virus against which it provides immunity.’
      • ‘I have been working on the computer vaccine for five years.’

Origin

Late 18th century: from Latin vaccinus, from vacca cow (because of the early use of the cowpox virus against smallpox).

Pronunciation:

vaccine

/vakˈsēn/