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WordNet-Online
Definitions from WordNet
Noun type iv allergic reaction has 1 sense
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Definitions from the WebType IV Allergic ReactionDescription: A Type IV allergic reaction, also known as delayed hypersensitivity or cell-mediated allergy, is an immune response triggered by certain substances or allergens. Unlike immediate allergic reactions, which occur within minutes, a Type IV reaction is characterized by a delayed onset, typically taking hours to days to manifest. This type of allergy involves activation of immune cells, mainly T cells, resulting in inflammation and tissue damage. Senses:Sense 1:Noun: A delayed hypersensitivity reaction caused by an immune response to allergens. Sample Sentence: The patient developed a type IV allergic reaction after coming into contact with poison ivy. Sense 2:Adjective: Describing a hypersensitive immune reaction characterized by delayed onset. Sample Sentence: The type IV allergic reaction to the medication occurred two days after ingestion. Usages:Usage 1:Medical: In the field of medicine, understanding type IV allergic reactions is crucial for diagnosing and managing various allergies and skin conditions. Sample Sentence: Dermatologists are well-versed in identifying and treating type IV allergic reactions. Usage 2:Research: Type IV allergic reactions are subjects of study in immunology and allergy research to develop effective treatment methods. Sample Sentence: Researchers conducted a study to investigate the underlying mechanisms of type IV allergic reactions. Related products on Amazon: | ||||
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