οὐρανός .οὐρᾰνός, οῦ, ὁ, only in sg. heaven: in Hom. and Hes., the vault or firmament of heaven, the sky, conceived as a concave hemisphere resting on the verge of earth, upborne by the pillars of Atlas, Od., Hes., etc.; conceived to be of solid metal, χάλκεος, πολύχαλκος, σιδήρεος, Hom.: on this vault the sun performed his course, Od.; the stars were fixed upon it, and moved with it, for it was supposed to be always revolving, Il. heaven, as the seat of the gods, above this skyey vault, the portion of Zeus, Hom.; πύλαι οὐρανοῦ Heavengate, which the Hours lifted and put down like a trapdoor, Il. in common language, heaven, the sky, Hom., etc.; πρὸς οὐρανὸν βιβάζειν τινά to exalt to heaven, as Hor. evehere ad Deos, Soph.; εἰς τὸν οὐρ. ἥλλοντο leapt up on high, Xen.: a region of heaven, climate, Hdt. as prop. n. Uranus, son of Erebus and Gaia, Hes.; or husband of Gaia, parent of the Titans, Hes., Aesch.