(astronomy) An open cluster of stars in the constellation Taurus, and the nearest visible such cluster to Earth.
(greekmyth) Daughters of the Titan Atlas and sisters of the Pleiades.
(constellation) A winter constellation of the southern sky, said to resemble a small serpent. It lies between the constellations Mensa and Tucana. It is not to be confused with the constellation Hydra.
(Greek mythology) A Titan, the son of Gaia and Uranus and the father of Helios, Selene and Eos.