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anaphylactic

adjective

ana·​phy·​lac·​tic ˌa-nə-fə-ˈlak-tik How to pronounce anaphylactic (audio)
: of, relating to, affected by, or causing anaphylaxis or anaphylactic shock
anaphylactically adverb
anaphylactoid adjective

Examples of anaphylactic 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 bites would only be harmful to those who could have an anaphylactic reaction, a life-threatening allergic reaction that can cause a person's tongue and throat to swell. Julia Gomez, USA Today, 19 Nov. 2025 Humans don't produce the molecule so when a tick transmits it, alpha-gal can produce a hive-like rash or an anaphylactic reaction about 2-6 hours after a person consumes meat. NPR, 15 Nov. 2025 This syndrome can result from a coronary event (any adverse medical event related to the coronary arteries, which supply blood to the heart) occurring in combination with anaphylactic or allergic reactions. Khloe Quill, FOXNews.com, 28 June 2025 In severe cases, people with food allergies may go into anaphylaxis—and peanuts are the most common cause of anaphylactic allergic reactions. Adeola Adeosun, MSNBC Newsweek, 15 June 2025 See All Example Sentences for anaphylactic

Word History

First Known Use

1905, in the meaning defined above

Time Traveler
The first known use of anaphylactic was in 1905

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Cite this Entry

“Anaphylactic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/anaphylactic. Accessed 29 Nov. 2025.

Medical Definition

anaphylactic

adjective
ana·​phy·​lac·​tic ˌan-ə-fə-ˈlak-tik How to pronounce anaphylactic (audio)
: of, relating to, affected by, or causing anaphylaxis or anaphylactic shock
anaphylactically adverb
Last Updated: - Updated example sentences
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