immunization

noun

im·​mu·​ni·​za·​tion ˌi-myə-nə-ˈzā-shən How to pronounce immunization (audio)
 also  i-ˌmyü-nə-
plural immunizations
: the act of making someone or something immune or the state of being immune : the act or result of immunizing someone or something: such as
a
: the production of immunity in a living organism against a disease or pathogenic agent
The plasmids used for immunization have been altered to carry genes specifying one or more antigenic proteins normally made by a selected pathogen …David B. Weiner et al.
also : treatment (as by vaccination) for the purpose of making an organism immune to a disease or pathogenic agent : the administration of an immune-producing substance
Measles is the single most infectious common disease—one person with measles who blunders into a crowded room will give it to almost everyone. If there were no immunization, measles would be universal. Wayne Biddle
Those benefits can include preventive care, such as annual physicals, immunizations, and well-baby visits. Consumer Reports
b
: the providing of protection or exemption from something harmful or unwanted (such as legal action)
immunization from liability
The Interior Department is negotiating with other private landowners to extend similar immunization from prosecution to those who agree to avoid activities that might hurt the bird's chances of survival.Ken Miller

Examples of immunization in a Sentence

Recent Examples on the Web The vaccine — called R21/Matrix-M — will be used as part of children’s routine immunization. Ari Daniel, NPR, 24 May 2024 Though animal vaccines can be much less expensive than the human equivalents, the price of the serum itself is not the only cost of an immunization program. Helen Branswell, STAT, 22 May 2024 See all Example Sentences for immunization 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'immunization.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1889, in the meaning defined above

Time Traveler
The first known use of immunization was in 1889

Dictionary Entries Near immunization

Cite this Entry

“Immunization.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/immunization. Accessed 29 May. 2024.

Kids Definition

immunization

noun
im·​mu·​ni·​za·​tion
ˌim-yə-nə-ˈzā-shən
: treatment (as with a vaccine) to produce immunity to a disease

Medical Definition

immunization

noun
im·​mu·​ni·​za·​tion
variants also British immunisation
: the creation of immunity usually against a particular disease
especially : treatment (as by vaccination) of an organism for the purpose of making it immune to a particular pathogen
immunization against polio

More from Merriam-Webster on immunization

Last Updated: - Updated example sentences
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