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vaccine

vac·cine [ vak-ˈsēn]

vaccine

noun

[vak-ˈsēn]

Definition of vaccine

: a preparation of killed microorganisms, living attenuated organisms, or living fully virulent organisms that is administered to produce or artificially increase immunity to a particular disease

Other Words from vaccine

vaccine adjective

Recent Examples on the Web

//About 70 percent of the money was doled out in cases in which no government body actually concluded that a vaccine was at fault.
— Rachel Gutman, The Atlantic, "A Telling Exchange at the Zuckerberg Hearing," 23 Oct. 2019
//On the contrary, vaccines are a key public-health benefit.
— Mona Charen, National Review, "Elizabeth Warren Is Not Honest," 18 Oct. 2019
//Today vaccines are partly a victim of their own resounding success.
— The Editors, Scientific American, "The U.S. Should Tighten Vaccination Mandates," 17 Oct. 2019
//Even a dog that has a current rabies vaccination has to be quarantined at home to make sure the vaccine is effective and there is no indication the dog has rabies, Derevyanny said.
— Kimberly Fornek, chicagotribune.com, "Indian Head Park residents complain to board after recent dog attacks," 10 Oct. 2019
//There are hints that the vaccine may not be as well matched to the circulating flu strains as doctors would like.
— Erin Allday, SFChronicle.com, "Troubling early signs as flu season approaches," 8 Oct. 2019
//Sanofi officials said the Dengvaxia vaccine was safe and would reduce dengue infections if the vaccination drive continued.
— San Diego Union-Tribune, "Philippines confirms 2nd polio case after declaring outbreak," 20 Sep. 2019
//Specialists at the center are developing vaccines for swine flu, Ebola, and HIV, TASS reported.
— Char Adams, PEOPLE.com, "Explosion Reported at Russian Lab Carrying Dangerous Viruses Like Ebola and Smallpox," 17 Sep. 2019
//Scientists at the center are developing vaccines for swine flu, HIV, and Ebola.
— Helen Regan, CNN, "Explosion and fire break out at Russian lab known for housing deadly smallpox virus," 17 Sep. 2019

First Known Use of vaccine

1882, in the meaning defined above

History and Etymology for vaccine

earlier, "fluid from cowpox pustules used in inoculation," noun use of vaccine "of cowpox" (in the phrases vaccine disease, vaccine matter), borrowed from New Latin vaccina (in variolae vaccinae "cowpox"), going back to Latin, feminine of vaccīnus "of or from a cow," from vacca "cow" (perhaps akin to Sanskrit vaśā "cow") + -īnus -ine entry 1; in extended sense, "preparation of organisms administered to produce immunity," in part borrowed from French vaccin, masculine derivative of vaccine "cowpox, matter from cowpox pustules," borrowed from New Latin or English

Dictionary Entries near vaccine

More Definitions forvaccine

vaccine

noun

English Language Learners Definition of vaccine

medical : a substance that is usually injected into a person or animal to protect against a particular disease

vaccine

noun

vac·cine | \ vak-ˈsēn , ˈvak-ˌsēn\

Kids Definition of vaccine

: a preparation containing usually killed or weakened microorganisms (as bacteria or viruses) that is given usually by injection to increase protection against a particular disease

vaccine

noun

vac·cine | \ vak-ˈsēn, ˈvak-ˌ \

Medical Definition of vaccine

1 : matter or a preparation containing the virus of cowpox used to vaccinate a person against smallpox

2 : a preparation of killed microorganisms, living attenuated organisms, or living fully virulent organisms that is administered to produce or artificially increase immunity to a particular disease
//chicken pox vaccine also : a mixture of several such vaccines
//measles-mumps-rubella vaccine