Phoe·be / ˈfēbē/ 1. Greek Mythol. a Titaness, daughter of Uranus (Heaven) and Gaia (Earth). She became the mother of Leto and thus the grandmother of Apollo and Artemis. In the later Greek writers, her name was often used for Selene (Moon).2. Astron. a satellite of Saturn, the furthest from the planet and with an eccentric retrograde orbit, discovered in 1898. At a distance of 8 million miles (13 million km) from Saturn, it has a diameter of 137 miles (220 km).

phoe·be / ˈfēbē/ • n. an American tyrant flycatcher with mainly gray-brown or blackish plumage. • Genus Sayornis, family Tyrannidae: three species, in particular the common eastern phoebe (S. phoebe).

Phoebe (Saturn IX) One of the lesser satellites of Saturn, with a radius measuring 115 × 110 × 105 km; visual albedo 0.06. Its orbit is retrograde. It was discovered in 1898 by W. Pickering.