anaphylactic

adjective

ana·​phy·​lac·​tic ˌa-nə-fə-ˈlak-tik 

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

anaphylactically

ˌa-nə-fə-ˈlak-ti-k(ə-)lē 

adverb

anaphylactoid

ˌa-nə-fə-ˈlak-ˌtȯid 

adjective

Examples of anaphylactic in a Sentence

Recent Examples on the Web

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

How to treat anaphylactic reactions Anaphylactic reactions most commonly occur in response to foods, insect stings, medications and latex, according to the American Academy of Allergy, Asthma and Immunology. —Adrianna Rodriguez, USA Today, 12 June 2025

An amniotic fluid embolism, or anaphylactic syndrome of pregnancy, is a rare, life-threatening complication that can occur after during delivery or shortly after. —Sarah Lynch Baldwin, CBS News, 3 Apr. 2025

Anaphylactic Reaction An anaphylactic response to acetaminophen is rare but possible.9 Anaphylaxis is a severe allergic reaction to a substance. —Nancy Lebrun, Verywell Health, 21 Mar. 2025

Word History

First Known Use

1905, in the meaning defined above

Phrases Containing anaphylactic

• anaphylactic shock

Rhymes for anaphylactic

• extragalactic
• intergalactic
• stereotactic
• chemotactic
• chiropractic
• isotactic
• prophylactic
• climactic
• didactic
• galactic
• syntactic
• lactic

Medical Definition

anaphylactic

adjective

ana·​phy·​lac·​tic ˌan-ə-fə-ˈlak-tik 

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

anaphylactically

-ti-k(ə-)lē 

adverb