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.
Their discoveries have opened new paths for therapies that either suppress or activate immune responses, depending on the disease. Shane Croucher, MSNBC Newsweek, 10 Oct. 2025 The vaccine combines two immune-stimulating molecules (adjuvants) in a tiny lipid nanoparticle that enhances both innate and adaptive immune responses. New Atlas, 9 Oct. 2025 The combined vaccine has been extensively studied and consistently shown to provoke an immune response comparable to what’s seen when the individual vaccines are given separately, and without raising the risk of serious side effects. Katia Hetter, CNN Money, 8 Oct. 2025 Taking pain relievers like Tylenol or Advil before or during the shot may weaken your immune response. Ashley Wong, Health, 8 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 17 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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