- type IV allergic reaction
- nounan allergic reaction that becomes apparent only hours after contact• Syn: ↑delayed allergy• Hypernyms: ↑allergy, ↑allergic reaction
Useful english dictionary. 2012.
type IV allergic reaction
Look at other dictionaries:
type I allergic reaction — noun an allergic reaction that becomes apparent in a sensitized person only minutes after contact • Syn: ↑immediate allergy, ↑atopy, ↑atopic allergy • Hypernyms: ↑allergy, ↑allergic reaction … Useful english dictionary
allergic reaction — noun hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity • Syn: ↑allergy • Derivationally related forms: ↑allergic (for: ↑allergy), ↑allergist (for: ↑ … Useful english dictionary
allergic reaction — hypersensitivity r.; used particularly to denote a type I hypersensitivity r … Medical dictionary
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Type IV hypersensitivity — Classification and external resources MeSH D006968 Type IV hypersensitivity is often called delayed type hypersensitivity as the reaction takes two to three days to develop. Unlike the other types, it is not antibody mediated but rather is a type … Wikipedia
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reaction — 1. The response of a muscle or other living tissue or organism to a stimulus. 2. The color change effected in litmus and certain other organic pigments by contact with substances such as acids or alkalies; also the property that such substances… … Medical dictionary
Allergic contact dermatitis — A red, itchy, weepy reaction where the skin has come into contact with a substance that the immune system recognizes as foreign, such as poison ivy, poison oak or poison sumac or certain preservatives in creams and lotions. This type of reaction… … Medical dictionary
