1. 
[syn: oceanic, pelagic]
The Collaborative International Dictionary of English v.0.48:
Pelagic \Pe*lag"ic\, a. [L. pelagicus.]
   Of or pertaining to the ocean; -- applied especially to
   animals that live at the surface of the ocean, away from the
   coast. Compare benthic.
   [1913 Webster]
WordNet (r) 3.0 (2006):
pelagic
    adj 1: relating to or occurring or living in or frequenting the
           open ocean; "oceanic islands like Bermuda"; "oceanic
           currents"; "oceanic birds"; "pelagic organisms"; "pelagic
           whaling" [syn: oceanic, pelagic]
Moby Thesaurus II by Grady Ward, 1.0:
19 Moby Thesaurus words for "pelagic":
   bathymetric, bathyorographical, deep-sea, hydrographic, marine,
   maritime, nautical, naval, navigational, ocean-going, oceanic,
   oceanographic, salty, seafaring, seamanlike, seamanly, terriginous,
   thalassic, water-borne