switchblade
noun
                                                                                                                            
                                                            switch·blade
                    
                                                                                                              
                                                                                                                                  ˈswich-ˌblād  
                                                      
                                                          
            
                                
              
          
                                                      : a pocketknife having the blade spring-operated so that pressure on a release catch causes it to fly open                                      
                
called also switchblade knife
Love words? Need even more definitions?
  
  Merriam-Webster unabridged




Share