o·cean·og·ra·phy (ō'shə-nŏg'rə-fē) n. The exploration and scientific study of the ocean and its phenomena. Also called oceanology. o'cean·og'ra·pher n., o'cean·o·graph'ic (ō'shə-nə-grāf'ĭk), o'cean·o·graph'i·cal adj., o'cean·o·graph'i·cal·ly adv.
oceanography (ō'shə-nŏg'rə-fē) Pronunciation Key
The scientific study of oceans, the life that inhabits them, and their physical characteristics, including the depth and extent of ocean waters, their movement and chemical makeup, and the topography and composition of the ocean floors. Oceanography also includes ocean exploration. Also called oceanology.
[oh-shuh-nog-ruh-fee, oh-shee-uh-] 
ʃəˈnɒg