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Anaphylaxis

//ˌænəfɪˈlæksɪs// noun

Definitions

Noun

1
Extreme sensitivity to a substance such as a foreign protein or drug. countable, uncountable
2
hypersensitivity reaction to the ingestion or injection of a substance (a protein or drug) resulting from prior contact with a substance wordnet
3
A severe and rapid systemic allergic reaction to an allergen, causing a constriction of the trachea, preventing breathing; anaphylactic shock. countable, uncountable
"“Anyone who has experienced or witnessed an anaphylaxis reaction knows it can be very stressful deciding when to inject epinephrine to themselves or a child and often delay,” Dr. Jonathan Spergel, chief of the allergy program at Children’s Hospital of Philadelphia, said in a news release from ARS Pharmaceuticals."

Etymology

Borrowed from French anaphylaxie, coined by French physiologist and parapsychologist Charles Richet and French zoologist Paul Portier from the Ancient Greek ᾰ̓νᾰ- (ănă-, “(intensifier) thoroughly”) from ᾰ̓νᾰ́ (ănắ, “to, again, upon”) and φύλαξις (phúlaxis, “protection, watching, guarding”).

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