Noun
a double-reed woodwind instrument similar to an oboe but lower in pitch
Source: WordNetA vestige of this survives in Sergei Prokofiev 's use of the clef for the cor anglais, as in his symphonies. Source: Internet
Siegfried requires one onstage cor anglais and one onstage horn. Source: Internet
The most widely known today is the cor anglais, or English horn, the tenor (or alto) member of the family. Source: Internet