ana·​phy·​lac·​tic | \ ˌa-nə-fə-ˈlak-tik How to pronounce anaphylactic (audio) \

Definition of anaphylactic

: of, relating to, affected by, or causing anaphylaxis or anaphylactic shock

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Other Words from anaphylactic

anaphylactically \ ˌa-​nə-​fə-​ˈlak-​ti-​k(ə-​)lē How to pronounce anaphylactic (audio) \ adverb
anaphylactoid \ ˌa-​nə-​fə-​ˈlak-​ˌtȯid How to pronounce anaphylactic (audio) \ adjective

Examples of anaphylactic in a Sentence

Recent Examples on the Web Two ingredients in the Covid-19 vaccines, polyethylene glycol and polysorbate 80, have been suggested as possible culprits in anaphylactic reactions related to Covid-19 vaccines. Erika Edwards, NBC News, "Do you a need test to tell you if you're allergic to the Covid vaccine before getting it?," 5 Apr. 2021 Nearly all of the rare anaphylactic reactions to Covid-19 vaccines have occurred among women, too. New York Times, "Women Report Worse Side Effects After a Covid Vaccine," 8 Mar. 2021 Nearly all of the rare anaphylactic reactions to COVID-19 vaccines have occurred among women, too., "Women report worse side effects after a COVID vaccine," 9 Mar. 2021 But having an anaphylactic reaction to something in the past doesn’t preclude someone from getting a vaccine altogether. Katherine Ellen Foley, Quartz, "Your next-wave Covid-19 vaccine questions, answered by an expert," 4 Mar. 2021 Severe allergic reactions have been observed in about 5 people per 1 million doses of the Pfizer vaccine, with nearly three-quarters of those anaphylactic reactions occurring within 15 minutes of getting a shot, according to the CDC. Kristen Jordan Shamus, Detroit Free Press, "Macomb County man, 90, dies after COVID-19 vaccine — but doctors say shots are safe," 18 Feb. 2021 The most severe was an Alaska health care worker who experienced an anaphylactic reaction -- flushing and shortness of breath -- about 10 minutes after getting a Pfizer shot. Laura Hancock, cleveland, "Can I get a coronavirus vaccine if someone doesn’t show up for theirs? Answers to COVID-19 vaccine questions," 13 Jan. 2021 Messonnier talked with the media on Wednesday to discuss an initial study of 21 people in the U.S. who suffered anaphylactic reactions to COVID-19 vaccine injections. Jeremy Olson, Star Tribune, "Minnesota has received 396,350 COVID-19 vaccine doses, administered 81,167 shots," 6 Jan. 2021 And a physician in Boston with a shellfish allergy reported having an anaphylactic reaction to Moderna’s vaccine. John Lauerman, Fortune, "Everything to know about allergic reactions to COVID vaccines," 31 Dec. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'anaphylactic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of anaphylactic

1905, in the meaning defined above

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Time Traveler for anaphylactic

Time Traveler

The first known use of anaphylactic was in 1905

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Statistics for anaphylactic

Last Updated

8 Apr 2021

Cite this Entry

“Anaphylactic.” Dictionary, Merriam-Webster, Accessed 12 Apr. 2021.

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More Definitions for anaphylactic


ana·​phy·​lac·​tic | \ ˌan-ə-fə-ˈlak-tik How to pronounce anaphylactic (audio) \

Medical Definition of anaphylactic

: of, relating to, affected by, or causing anaphylaxis or anaphylactic shock

Other Words from anaphylactic

anaphylactically \ -​ti-​k(ə-​)lē How to pronounce anaphylactic (audio) \ adverb

Comments on anaphylactic

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