o·cean·og·ra·phy 
(ō′shə-nŏgrə-fē)
(ō′shə-nŏgrə-fē)n.
The exploration and scientific study of the ocean and its phenomena. Also called oceanology.
o′cean·ogra·pher n.
o′cean·o·graphic (ō′shə-nə-grăfĭk), o′cean·o·graphi·cal adj.
o′cean·o·graphi·cal·ly adv.