immunotherapy

noun

im·​mu·​no·​ther·​a·​py ˌi-myə-nō-ˈther-ə-pē How to pronounce immunotherapy (audio)
i-ˌmyü-nō-
: treatment or prevention of disease (such as an autoimmune disorder, allergy, or cancer) that involves the stimulation, enhancement, suppression, or desensitization of the immune system see adoptive immunotherapy
immunotherapeutic adjective

Examples of immunotherapy 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.
The other was an immunotherapy treatment designed to boost the ability of the patient’s immune system to kill cancer cells that are growing out of control. Time, 31 July 2025 Their interview was five days after Mellencamp's latest immunotherapy treatment, which tends to bring raw feelings to the surface. Cara Lynn Shultz, People.com, 29 July 2025 Building on this, the second study compared 34 patients prescribed both immunotherapy and cannabis with 68 patients receiving the cancer treatment alone. Hannah Millington, MSNBC Newsweek, 25 July 2025 This latest update comes after Teddi shared in June on Two Ts in a Pod that her immunotherapy treatments had been so successful in beating back the growth of her tumors and that there were no plans to cease them. EW.com, 25 July 2025 See All Example Sentences for immunotherapy

Word History

Etymology

borrowed from German Immunotherapie, from immuno- immuno- + Therapie therapy

Note: The German word was introduced by Paul ehrlich in the lecture "Chemotherapie von Infektionskrankheiten," published in Zeitschrift für ärtzliche Fortbildung, 6. Jahrgang, Nummer 23 (1. Dezember 1909), pp. 721-33.

First Known Use

1910, in the meaning defined above

Time Traveler
The first known use of immunotherapy was in 1910

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Cite this Entry

“Immunotherapy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/immunotherapy. Accessed 6 Aug. 2025.

Medical Definition

immunotherapy

noun
im·​mu·​no·​ther·​a·​py -ˈther-ə-pē How to pronounce immunotherapy (audio)
plural immunotherapies
: treatment or prevention of disease (such as a cancer, autoimmune disorder, or allergy) that involves the stimulation, enhancement, suppression, or desensitization of the immune system
Demonstrating promise is immunotherapy, in which special medications are used to beef up the body's own cancer-fighting cells.Harvard Health Letter
If environmental control and pharmacotherapy fail to control symptoms, then allergen immunotherapy—also called hyposensitization or desensitization—may be considered.Discover

called also immune therapy

see adoptive immunotherapy
immunotherapeutic adjective
immunotherapeutic activity
immunotherapeutic methods

More from Merriam-Webster on immunotherapy

Last Updated: - Updated example sentences
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