oceanography
noun
                                                                                                                            
                                                            ocean·og·ra·phy
                    
                                                                                                              
                                                                                                                                  ˌō-shə-ˈnä-grə-fē  
                                                      
                                                          
            
                                
              
          
                                                      : a science that deals with the oceans and includes the delimitation of their extent and depth, the physics and chemistry of their waters, marine biology, and the exploitation of their resources                                      
                
                    
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