Share this entry

Share this page

vaccine

Line breaks: vac|cine
Pronunciation: /ˈvaksiːn
 
, -ɪn/

Definition of vaccine in English:

noun

Medicine
1An antigenic substance prepared from the causative agent of a disease or a synthetic substitute, used to provide immunity against one or several diseases: there is no vaccine against HIV infection
More example sentences
  • Immunisation with the influenza vaccine is recommended for asthmatic people.
  • They have proved that a vaccine which immunises against the disease is more likely to work in humans.
  • These children show few adverse reactions to routine vaccinations, including live vaccines.
1.1 Computing A program designed to detect computer viruses and inactivate them.
Example sentences
  • 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.
  • Do you have problem with your computer vaccine when it's service period is over?

Origin

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

Definition of vaccine in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day orthoepy
Pronunciation: ôrˈTHōəpē
noun
the correct or accepted pronunciation of words