Definition of "Oceanus"

(Greek mythology) Personification of vast waters or the world ocean. He was the first-born of the Titans, son of Uranus and Gaia, the god Ωκεανός Ποταμός (Ōkeanós Potamós, “River Ocean”) that encircled the earth. With his sister-wife, Tethys, he fathered all rivers and the Oceanids.