anaphylaxis

noun

ana·​phy·​lax·​is ˌa-nə-fə-ˈlak-səs How to pronounce anaphylaxis (audio)
plural anaphylaxes ˌa-nə-fə-ˈlak-ˌsēz How to pronounce anaphylaxis (audio)
1
: hypersensitivity (as to foreign proteins or drugs) resulting from sensitization following prior contact with the causative agent
2

Examples of anaphylaxis in a Sentence

Recent Examples on the Web Severe adverse reactions will lead to a complication called anaphylaxis that can be fatal. Chris Smith, BGR, 1 Nov. 2022 In rare cases a gnat bite can cause a severe allergic reaction called anaphylaxis. Anna Kaufman, USA TODAY, 19 July 2022 But Abby had gone through a terrifying episode of anaphylaxis while taking PEG-asparaginase. Brenda Goodman, CNN, 29 Dec. 2022 Finally, one important cluster of symptoms to be aware of is anaphylaxis, Dr. Tam says. Lauren Krouse, SELF, 1 June 2022 See all Example Sentences for anaphylaxis 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'anaphylaxis.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

New Latin, from ana- + prophylaxis

First Known Use

circa 1905, in the meaning defined at sense 1

Time Traveler
The first known use of anaphylaxis was circa 1905

Dictionary Entries Near anaphylaxis

Cite this Entry

“Anaphylaxis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/anaphylaxis. Accessed 7 Jul. 2024.

Medical Definition

anaphylaxis

noun
ana·​phy·​lax·​is ˌan-ə-fə-ˈlak-səs How to pronounce anaphylaxis (audio)
plural anaphylaxes -ˌsēz How to pronounce anaphylaxis (audio)
1
: hypersensitivity (as to foreign proteins or drugs) resulting from sensitization following prior contact with the causative agent
2

More from Merriam-Webster on anaphylaxis

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