Definition of Giant hives
1. Noun. Recurrent large circumscribed areas of subcutaneous edema; onset is sudden and it disappears within 24 hours; seen mainly in young women, often as an allergic reaction to food or drugs.
Generic synonyms: Dropsy, Edema, Hydrops, Oedema
Medical Definition of Giant hives
1. A vascular reaction involving the deep dermis or subcutaneous or submucal tissues, representing localised oedema caused by dilatation and increased permeability of the capillaries and characterised by development of giant wheals. (18 Nov 1997)
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