Wag·ner (väg'nər) German composer known especially for his romantic operas, often based on Germanic legends. Among his works are Tannhäuser (1845) and the tetralogy Der Ring des Nibelungen (1853-1874).
A nineteenth-century German composer known for his operas, many of which dramatize myths and legends. The four-opera group The Ring of the Nibelung and the single opera Tristan und Isolde are among his best-known compositions.