urticaria

from WordNet (r) 3.0 (2006)

urticaria
    n 1: an itchy skin eruption characterized by weals with pale
         interiors and well-defined red margins; usually the result
         of an allergic response to insect bites or food or drugs
         [syn: {urtication}, {urticaria}, {hives}, {nettle rash}]

from The Collaborative International Dictionary of English v.0.48

Urticaria \Ur`ti*ca"ri*a\, n. [NL. See {Urtica}.] (Med.)
   The nettle rash, a disease characterized by a transient
   eruption of red pimples and of wheals, accompanied with a
   burning or stinging sensation and with itching; uredo.
   [1913 Webster]

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