HyperDic: hypersensitivity_reaction

English > 1 sense of the expression hypersensitivity reaction:
NOUNstatehypersensitivity reactionan inappropriate and excessive reaction to an allergen (as pollen or dust or animal hair or certain foods)
English > hypersensitivity reaction: 1 sense > noun 1, state
MeaningAn inappropriate and excessive reaction to an allergen (as pollen or dust or animal hair or certain foods); severity ranges from mild allergy to severe systemic reactions leading to anaphylactic shock.
Narrowerallergic rhinitisrhinitis caused by an allergic reaction
allergy, allergic reactionhypersensitivity reaction to a particular allergen
anaphylaxishypersensitivity reaction to the ingestion or injection of a substance (a protein or drug) resulting from prior contact with a substance
urtication, urticaria, hives, nettle rashAn itchy skin eruption characterized by weals with pale interiors and well-defined red margins
Broaderhypersensitivitypathological sensitivity

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