Definition of Umbriel in English:

Umbriel

Pronunciation /ˈəmbrēəl/ /ˈəmbriəl/

proper noun

Astronomy
  • A satellite of Uranus, the thirteenth closest to the planet, discovered in 1851, having a diameter of 739 miles (1,190 km).

Origin

Named after a sprite in The Rape of the Lock by Alexander Pope.