a long narrow steep-sided depression in the earth’s oceanic crust, usually lying above a subduction zone
[oh-see-uh-nid] /oʊˈsi ə nɪd/ noun, plural Oceanids, Oceanides [oh-see-an-i-deez] /ˌoʊ siˈæn ɪˌdiz/ (Show IPA). Classical Mythology. 1. any of the daughters of Oceanus and Tethys; a sea nymph. /əʊˈsɪənɪd/ noun (pl) Oceanids, Oceanides (ˌəʊsɪˈænɪˌdiːz) 1. (Greek myth) any of the ocean nymphs born of Oceanus and Tethys
noun 1. an oceangoing passenger ship, operating either as one unit of a regular scheduled service or as a cruise ship.
noun 1. insurance covering risks involving the transporting of persons or goods on the high seas.
- Ocean of storms
noun 1. the largest of the dark plains (maria) on the surface of the moon, situated in the second and third quadrant Also called Oceanus Procellarum (ˌəʊʃɪˈænəs ˌprəʊsɛˈlærəm)