URTICARIA
\ˌɜːtɪkˈe͡əɹi͡ə], \ˌɜːtɪkˈeəɹiə], \ˌɜː_t_ɪ_k_ˈeə_ɹ_iə]\
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A vascular reaction of the skin characterized by erythema and wheal formation due to localized increase of vascular permeability. The causative mechanism may be allergy, infection, or stress.
By DataStellar Co., Ltd
By William R. Warner
By Willam Alexander Newman Dorland
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Hives, nettle rash; an acute or chronic affection of the skin characterized by an eruption of red, elevated, rounded efflorescences of irregular shape and size, which at a certain stage of their development appear blanched in the center and erythematous at the periphery, being then commonly known as wheals. The eruption is attended with intense itching. It is usually transitory, though sometimes disposed to recur.
By Smith Ely Jelliffe
Word of the day
SQ10,643
- A serotonin antagonist with limited antihistaminic, anticholinergic, and immunosuppressive activity.