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单词 urticaria
释义

urticaria

/ˌəːtɪˈkɛːrɪə /
noun [mass noun] Medicine
A rash of round, red weals on the skin which itch intensely, sometimes with dangerous swelling, caused by an allergic reaction, typically to specific foods. Also called nettlerash or hives.At each interview, subjects were asked about the occurrence of allergic rhinitis, urticaria, eczema, asthma attacks, or asthmalike breathing problems in the last 12 months....
  • Histamine, which is released by mast cells in persons with urticaria and other allergic reactions, classically is associated with pruritus.
  • Symptoms can vary from mild reactions, such as urticaria, hay fever, and allergic conjunctivitis, to asthma and, in rare cases, anaphylaxis.

Origin

Late 18th century: modern Latin, from Latin urtica 'nettle', from urere 'to burn'.

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更新时间:2024/9/20 8:49:18