1. (a.) Of or pertaining to the ocean; found or formed in or about, or produced by, the ocean; frequenting the ocean, especially mid-ocean.

2. (a.) of or pertaining to Oceania or its inhabitants.

aquatic bathymetric bathyorographical deep-sea deep-water hydrographic marine maritime nautical naval navigational ocean ocean-going oceanographic pelagic salty sea seafaring seamanlike seamanly terriginous thalassic water-borne