Warthin-Starry stain
noun
                                                                                                                            
                                                            War·thin-Star·ry stain
                    
                                                                                                              
                                                                                                                                  ˈwȯr-thən-ˈstär-ē- 
                                                      
                                                          
            
                                
              
          
                                                      : a silver nitrate stain used to show the presence of bacilli                                      
                
                    
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  Merriam-Webster unabridged




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