Definitions of Dies Irae

  1. the first words of a medieval Latin hymn describing the Last Judgment (literally `day of wrath') Scrapingweb Dictionary DB
  2. Day of wrath; - the name and beginning of a famous mediaeval Latin hymn on the Last Judgment. Webster Dictionary DB
  3. A hymn on the last judgment, so called from its first words. Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914.