ampulla of Lorenzini
noun phrase
                                                                                                                            
                                                            ampulla of Lo·ren·zi·ni
                    
                                                                                                              
                                                                                                                                  -ˌlȯr-ən-ˈzē-nē  
                                                      
                                                          
            
                                
              
          
                                                      : any of the pores on the snouts of marine sharks and rays that contain receptors highly sensitive to weak electric fields                                      
                
                    
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