in vitro
adverb or adjective
                                                                                                                            
                                                            in vi·tro
                    
                                                                                                              
                                                                                                                                  in-ˈvē-(ˌ)trō  -ˈvi-
                                                                                                                                  -ˈvi-  
                                                                                                                              
            -ˈwē-
                                                      
                                                          
                                
              
          
                                                      : outside the living body and in an artificial environment                                      
                
                    
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  Merriam-Webster unabridged




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