üldine ülitundlikkuseseisund, mis johtub histamiini vabanemisest nuumrakkudest ja millele on omased kiiresti tekkivad ja kaduvad vahelduva suurusega “nõgesekublad”, sügeleva kublalise lööbega allergiahaigus, an acute or chronic affection of the skin characterized by the formation of evanescent whitish, pink or red elevations or weals, attended by itching, stinging, or burning, an allergic disorder marked by raised edematous red patches of skin or mucous membrane and usually by intense itching and caused by contact with a specific precipitating factor (as a food, drug, or inhalant) either externally or internally