URTICARIA Meaning of URTICARIA in English [ ˌə:tɪ'kɛ:rɪə ]■ noun Medicine a rash of round, red weals on the skin which itch intensely, caused by an allergic reaction.OriginC18: mod. L., from L. urtica 'nettle'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004