inoculation

noun

in·​oc·​u·​la·​tion i-ˌnä-kyə-ˈlā-shən How to pronounce inoculation (audio)
1
: the act or process or an instance of inoculating
especially : the introduction of a pathogen or antigen into a living organism to stimulate the production of antibodies
2

Examples of inoculation in a Sentence

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.
With the recommendation, the government can finally distribute Covid-19 vaccines through its Vaccines for Children program, which provides free inoculations to about half of US children. Brenda Goodman, CNN Money, 6 Oct. 2025 With the recommendation, the government can finally distribute Covid-19 vaccines through its Vaccines for Children program which provides free inoculations to about half of US children. Cnn.com, Mercury News, 6 Oct. 2025 Everything about me—my careful disclaimers, my refusal to claim desire, my constant return to limits and boundaries—is an inoculation against liability. Gary Greenberg, New Yorker, 27 Sep. 2025 Although his role is often downplayed, an African man known as Onesimus introduced his enslaver Cotton Mather to inoculation. Stacie Kershner, The Conversation, 22 Sep. 2025 See All Example Sentences for inoculation

Word History

First Known Use

1714, in the meaning defined at sense 1

Time Traveler
The first known use of inoculation was in 1714

Browse Nearby Words

Cite this Entry

“Inoculation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inoculation. Accessed 22 Oct. 2025.

Kids Definition

inoculation

noun
in·​oc·​u·​la·​tion in-ˌäk-yə-ˈlā-shən How to pronounce inoculation (audio)
1
: the act or an instance of inoculating
2
: material used in inoculating

Medical Definition

inoculation

noun
in·​oc·​u·​la·​tion in-ˌäk-yə-ˈlā-shən How to pronounce inoculation (audio)
1
: the act or process or an instance of inoculating: as
a
: the introduction of a microorganism into a medium suitable for its growth
b(1)
: the introduction of a pathogen or antigen into a living organism to stimulate the production of antibodies
(2)
: the introduction of a vaccine or serum into a living organism to confer immunity
travelers in the tropics should have typhoid inoculations
2

More from Merriam-Webster on inoculation

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