urticaria
noun /ˌɜːtɪˈkeəriə/
/ˌɜːrtɪˈkeriə/
(medical) (also nettlerash)
[uncountable] (also hives [uncountable, plural])
- red spots on the skin that itch (= make you want to rub your skin with your nails), caused by an allergic reaction, for example to certain foodsWord Originlate 18th cent.: modern Latin, from Latin urtica ‘nettle’, from urere ‘to burn’.