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.
This is an immune response—your body sees the piercing as a foreign object and tries to expel it so the skin can heal. Sherri Gordon, Health, 24 Oct. 2025 These modified beads were far better at avoiding immune responses compared to untreated nanoplastics. Neetika Walter, Interesting Engineering, 17 Oct. 2025 The American Academy of Pediatrics (AAP) has emphasized that aluminum in vaccines strengthens the immune response and does not cause autism or other serious health problems. Humberto Basilio, Scientific American, 17 Oct. 2025 How Inflammation Affects the Body Inflammation is the body’s immune response to an illness or injury. Julia Ries Wexler, Outside, 16 Oct. 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 26 Oct. 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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