immunization
noun
im·mu·ni·za·tion
ˌi-myə-nə-ˈzā-shən 
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.
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
Wayne Biddle Those benefits can include preventive care, such as annual physicals, immunizations, and well-baby visits. —Consumer Reports
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
Ken MillerExamples of immunization in a Sentence
Recent Examples on the Web
Medical leader 'kind of blindsided by this announcement' Kennedy's announcement cut out a process where the CDC's independent panel of advisors vote for any new or updated recommendations to the immunization schedule.
—Youri Benadjaoud, ABC News, 27 May 2025
However, as of Tuesday morning, the CDC had so far not updated the immunization schedule to reflect the removal announced by Kennedy.
—Paula Cohen, CBS News, 27 May 2025
The immunization schedule posted online had not changed as of mid-Tuesday.
—Brenda Goodman, CNN Money, 27 May 2025
The health secretary's stance on vaccines mirrors a broader decline in public support for childhood immunizations.
—Mandy Taheri
nick Mordowanec, MSNBC Newsweek, 22 May 2025
See All Example Sentences for immunization
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Youri Benadjaoud, ABC News, 27 May 2025
However, as of Tuesday morning, the CDC had so far not updated the immunization schedule to reflect the removal announced by Kennedy.
—Paula Cohen, CBS News, 27 May 2025
The immunization schedule posted online had not changed as of mid-Tuesday.
—Brenda Goodman, CNN Money, 27 May 2025
The health secretary's stance on vaccines mirrors a broader decline in public support for childhood immunizations.
—Mandy Taheri
nick Mordowanec, MSNBC Newsweek, 22 May 2025
See All Example Sentences for immunization
Cite this Entry
“Immunization.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/immunization. Accessed 2 Jun. 2025.
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immunization
noun
im·mu·ni·za·tion
variants
also British immunisation
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