| Oceanus (n.) The god of the great outer sea, or the river which was believed to flow around the whole earth. Thesaurus Entries Davy, Davy Jones, Dylan, Neptune, Nereid, Nereus, Oceanid, Poseidon, Thetis, Triton, Varuna, fresh-water nymph, kelpie, limniad, man fish, mermaid, merman, naiad, nix, nixie, ocean nymph, sea devil, sea god, sea nymph, sea-maid, sea-maiden, seaman, siren, undine, water god, water spirit, water sprite |