anaphylaxis

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English[edit]

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Etymology[edit]

From the Ancient Greek ἀνά (aná, against) and φύλαξις (phúlaxis, protection, watching, guarding).

Noun[edit]

anaphylaxis (plural anaphylaxes)

  1. Extreme sensitivity to a substance such as a foreign protein or drug.
  2. A severe and rapid systemic allergic reaction to an allergen, causing a constriction of the trachea, preventing breathing; anaphylactic shock.

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