anaphylaxis

noun

Meaning

A severe, potentially life-threatening allergic reaction that occurs rapidly after exposure to an allergen.

Examples

  • The patient was rushed to the emergency room after experiencing signs of anaphylaxis following a bee sting.
  • Doctors carry epinephrine auto-injectors to treat patients who are at risk of developing anaphylaxis.

Synonyms: allergic reaction, hypersensitivity, anaphylactic shock