anaphylaxis

[an-uh-fuh-lak-sis]

noun

Pathology.

1. exaggerated allergic reaction to a foreign protein resulting from previous exposure to it.

anaphylaxis

/ ˌænəfɪˈlæksɪs /

noun

1. extreme sensitivity to an injected antigen, esp a protein, following a previous injection

anaphylaxis

1. See anaphylactic shock

Other Word Forms

• anaphylactically adverb
• anaphylactic adjective
• antianaphylactic adjective
• pseudoanaphylactic adjective

Word History and Origins

Origin of anaphylaxis¹

First recorded in 1905–10; ana- + (pro)phylaxis

Word History and Origins

Origin of anaphylaxis¹

C20: from _ana- + ( _pro ) _phylaxis

Example Sentences

Elysia did not develop anaphylaxis - a severe and life-threatening allergic reaction - but she did need to be treated.

From BBC

An inquest at Milton Keynes Coroner's Court this week confirmed Lily died on 23 June 2024 from a cardio-respiratory arrest caused by anaphylaxis and triggered by food.

From BBC

Suddenly, their existence is inundated with premium Korean sirloin and delicious fresh peaches, which the Kims use to send the Park’s housekeeper into anaphylaxis knowing about her severe allergy.

From Salon

In some instances, she added, the couple have tested food with her in a hospital car park "because we know we can get her quickly to the hospital if she experiences anaphylaxis".

From BBC

People at risk of potentially life-threatening allergic reactions, known as anaphylaxis, should always carry two adrenaline pens.

From BBC