hypersensitivity reaction
English Thesaurus
1. an 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 (noun.state)
| hyponym | : | hives, nettle rash, urticaria, urtication, |
| definition | : | an itchy skin eruption characterized by weals with pale interiors and well-defined red margins; usually the result of an allergic response to insect bites or food or drugs (noun.state) |
| hyponym | : | allergic reaction, allergy, |
| definition | : | hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity (noun.state) |
| hyponym | : | anaphylaxis, |
| definition | : | hypersensitivity reaction to the ingestion or injection of a substance (a protein or drug) resulting from prior contact with a substance (noun.state) |
| hyponym | : | allergic rhinitis, |
| definition | : | rhinitis caused by an allergic reaction (noun.state) |
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