First Known Use: 1813
Dictionary
vaccine
noun vac·cine \vak-ˈsēn, ˈvak-ˌ\
medical : a substance that is usually injected into a person or animal to protect against a particular disease
Full 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
— vaccine adjective
See vaccine defined for English-language learners
See vaccine defined for kids
ADVERTISEMENT
Origin of VACCINE
French vaccin, from vaccine cowpox, from New Latin vaccina (in variolae vaccinae cowpox), from Latin, feminine of vaccinus, adjective, of or from cows, from vacca cow; akin to Sanskrit vaśa cow
Other Biochemistry Terms
Rhymes with VACCINE
Andine, arene, baleen, beguine, Benin, benzene, benzine, Bernstein, between, black bean, boreen, bovine, broad bean, buckbean, caffeine, canteen, carbine, careen, chlorine, chopine, chorine, citrine, codeine, colleen, convene, cotquean, cuisine, dasheen, dauphine, demean, demesne, dry-clean, dudeen, eighteen, Essene, e-zine, fanzine, fascine, fifteen, flavine, fluorine, fourteen, gamine, gangrene, glassine, gyrene, Hellene, hoatzin, horsebean, houseclean, khamsin, Ladin, lateen, latrine, Lublin, machine, malines, marine, moline, moreen, morphine, nankeen, naphthene, Nicene, nineteen, nongreen, obscene, offscreen, on-screen, patine, piscine, poteen, praline, preteen, pristine, propine, Rabin, ratteen, ravine, red bean, routine, saline, saltine, Salween, sardine, sateen, scalene, serene, shagreen, shebeen, siren, Sistine, sixteen, Slovene, snap bean, soybean, spalpeen, string bean, strychnine, subteen, sunscreen, Szczecin, tacrine, takin, taurine, terrene, terrine, thirteen, Tolkien, tontine, tureen, umpteen, unclean, undine, unseen, vitrine, wax bean, white bean, windscreen, yestreen, Yibin, zechin
VACCINE Defined for Kids
vaccine
noun vac·cine \vak-ˈsēn, ˈvak-ˌsēn\
Definition of VACCINE for Kids
: 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
Word History of VACCINE
In the late 1700s the English doctor Edward Jenner investigated the old belief that people who contracted a mild disease called cowpox from cows thereby became immune to smallpox, a much more dangerous disease. Jenner documented 23 such cases, where people inoculated with matter from cowpox sores came down with cowpox but then did not contract smallpox. Because variolae vaccinae, literally, “cow pustules,” was the medical Latin name for cowpox, the virus-containing material used for inoculations eventually came to be called vaccine.
Medical Dictionary
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>
Learn More About VACCINE
Browse
Next Word in the Dictionary: vaccineePrevious Word in the Dictionary: vaccinationAll Words Near: vaccine
ADVERTISEMENT
Seen & Heard
What made you want to look up vaccine? Please tell us where you read or heard it (including the quote, if possible).