anaphylaxis

American  

[an-uh-fuh-lak-sis] / ˌæn ə fəˈlæk sɪs /

noun

Pathology.

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

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anaphylaxis British  

/ ˌænəfɪˈlæksɪs /

noun

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

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anaphylaxis Scientific  

/ ăn′ə-fə-lăk′sĭs /

1. See anaphylactic shock

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Other Word Forms

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

Etymology

Origin of anaphylaxis

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

Compare meaning

How does anaphylaxis compare to similar and commonly confused words? Explore the most common comparisons:

• anaphylaxis vs. anaphylactic shock

Example Sentences

The results also pointed to an extreme immune response consistent with fatal anaphylaxis.

From Science Daily

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

"It gives us that reassurance because we know we can get her quickly to the hospital if she experiences anaphylaxis," said the 42-year-old from Vale of Glamorgan.

From BBC

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

From BBC