Shatt al Arab
geographical name
                                                                                                                            
                                                            Shatt al Ar·ab
                    
                                                                                                              
                                                                                                                                  ˌshat-al-ˈa-rəb  
                                                      
                                                          
            
                                
              
          
                                                      river 120 miles (193 kilometers) long in southeastern Iraq formed by the Tigris and the Euphrates rivers and flowing southeast into the Persian Gulf                                      
                
                    
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  Merriam-Webster unabridged




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