vaccinate

verb

vac·​ci·​nate ˈvak-sə-ˌnāt How to pronounce vaccinate (audio)
vaccinated; vaccinating

transitive verb

: to administer a vaccine to usually by injection

intransitive verb

: to perform or practice vaccination
vaccinator noun

Examples of vaccinate in a Sentence

We vaccinate all the animals that come to our shelter.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The Texas Department of State Health Services said in a report of student immunization status for the 2023-2024 school year that 5.64% of Texas kindergarten students were not vaccinated for measles, while 2.34% of seventh graders had not received the vaccine. Antonio Pequeño Iv, Forbes.com, 24 May 2025 Some experts have argued an FDA restriction could create insurmountable barriers for those who no longer qualify but want to get vaccinated anyway to protect vulnerable family members. Youri Benadjaoud, ABC News, 21 May 2025 In addition to Americans over six months old who have at least one serious health condition, including asthma, diabetes, cancer or obesity, pregnant women are also listed among those encouraged to get vaccinated under the new guidelines. Nick Mordowanec, MSNBC Newsweek, 20 May 2025 Five cases involve patients who had been appropriately vaccinated, and three involved patients who could not verify their vaccination status. Robert A. Cronkleton, Kansas City Star, 15 May 2025 See All Example Sentences for vaccinate

Word History

Etymology

earlier, "to inoculate with fluid from a cowpox pustule," back-formation from vaccination; in later extended sense, in part borrowed from French vacciner, verbal derivative of vaccin vaccine

First Known Use

1882, in the meaning defined at transitive sense

Time Traveler
The first known use of vaccinate was in 1882

Browse Nearby Words

Cite this Entry

“Vaccinate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vaccinate. Accessed 28 May. 2025.

Kids Definition

vaccinate

verb
vac·​ci·​nate ˈvak-sə-ˌnāt How to pronounce vaccinate (audio)
vaccinated; vaccinating
: to give a vaccine to usually by injection
vaccinator noun

Medical Definition

vaccinate

1 of 2 verb
vac·​ci·​nate ˈvak-sə-ˌnāt How to pronounce vaccinate (audio)
vaccinated; vaccinating

transitive verb

1
: to inoculate (a person) with cowpox virus in order to produce immunity to smallpox
2
: to administer a vaccine to usually by injection

intransitive verb

: to perform or practice vaccination

vaccinate

2 of 2 noun
vac·​ci·​nate ˈvak-sə-ˌnāt How to pronounce vaccinate (audio) -nət How to pronounce vaccinate (audio)
: a vaccinated individual

More from Merriam-Webster on vaccinate

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