immune response

noun

: a bodily response to an antigen that occurs when lymphocytes identify the antigenic molecule as foreign and induce the formation of antibodies and lymphocytes capable of reacting with it and rendering it harmless

called also immune reaction

Examples of immune response 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.
Smaller Novavax, which makes COVID-19 shots in partnership with Sanofi that rely on proteins rather than mRNA to elicit an immune response, has been less the target of conspiracy theories, but still saw its shares drop 4% on Friday. Alex Knapp, Forbes.com, 17 Sep. 2025 The final mix includes botanicals, minerals, and vitamins such as holy basil for stress response, curcumin to promote a healthy immune response, konjac root to address oil production, and probiotics to optimize the microbiome. Megan McIntyre, Allure, 16 Sep. 2025 Signs of reduced inflammation and a stronger immune response also appeared in this group, while gut microbiota shifted in ways considered beneficial for immune health. Daniella Gray, MSNBC Newsweek, 16 Sep. 2025 Joks emphasizes that the nasal spray shouldn’t replace getting a COVID vaccine, which boosts the body’s immune response to prevent an infection from taking hold and causing serious illness. Tom Gavin, EverydayHealth.com, 11 Sep. 2025 See All Example Sentences for immune response

Word History

First Known Use

1923, in the meaning defined above

Time Traveler
The first known use of immune response was in 1923

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Cite this Entry

“Immune response.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/immune%20response. Accessed 21 Sep. 2025.

Kids Definition

immune response

noun
: a bodily response to a foreign substance, cell, or tissue that involves the formation of antibodies and cells capable of reacting with it and rendering it harmless

called also immune reaction

Medical Definition

immune response

noun
: a bodily response to an antigen that occurs when lymphocytes identify the antigenic molecule as foreign and induce the formation of antibodies and lymphocytes capable of reacting with it and rendering it harmless

called also immune reaction

Last Updated: - Updated example sentences
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