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 There weren’t anaphylactic reactions—a severe side effect—immediately after vaccination in the study, the FDA has said. Peter Loftus, WSJ, "Moderna’s Covid-19 Vaccine Is Cleared for American Use," 19 Dec. 2020 Earlier this month, two health care workers experienced anaphylactic reactions after receiving the Pfizer vaccine, and had to use auto-injectors to inject themselves with epinephrine (known popularly in the U.S. by the brand name EpiPen). Chronicle Advice Team,, "Allergic reactions to the coronavirus vaccine: Should I be concerned?," 23 Dec. 2020 Only six people across the country reported anaphylactic reactions as of Friday, including two here, federal officials say. Annie Berman, Anchorage Daily News, "‘So, so exciting”: Second wave of COVID-19 vaccine distributions begin in Alaska as Moderna shipments arrive," 22 Dec. 2020 The authorization cautions against use by those with a history of anaphylactic reactions, and doesn't cover those under 18 years old. John Timmer, Ars Technica, "Second COVID vaccine approved for use in the US," 19 Dec. 2020 Two health care workers in Britain also had anaphylactic reactions and recovered after receiving the Pfizer-BioNTech vaccine. Stacy St. Clair,, "First Chicago vaccine recipients report feeling ‘great’ after historic shots," 19 Dec. 2020 In Alaska, two health-care workers had allergic reactions minutes after vaccination this week, one of which was an anaphylactic reaction requiring hospitalization, an FDA official said. Peter Loftus, WSJ, "Moderna’s Covid-19 Vaccine: When Can You Get It and How Effective Is It?," 18 Dec. 2020 In the United Kingdom, two vaccine recipients who already suffered from severe allergies had anaphylactic reactions to their first shot of the Pfizer formula, but recovered. Maryn Mckenna, Wired, "Vaccines Are Here. We Have to Talk About Side Effects," 17 Dec. 2020 Pfizer did not include people who’d previously had anaphylactic reactions to any vaccine in their clinical trials, but that is pretty typical for vaccine research, Schwarz says. Kate Baggaley, Popular Science, "What you should know about allergic reactions to the COVID-19 vaccine," 17 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

14 Jan 2021

Cite this Entry

“Anaphylactic.” Dictionary, Merriam-Webster, Accessed 23 Jan. 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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