narcoleptic
noun
                                                                                                                            
                                                            nar·co·lep·tic
                    
                                                                                                              
                                                                                                                                  ˌnär-kə-ˈlep-tik  
                                                      
                                                          
            
                                
              
          
                                                      : a person who is subject to attacks of narcolepsy                                      
                
                    
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  Merriam-Webster unabridged




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