The quality or state of being vital; the principle of life; vital force; animation; as, the vitality of eggs or vegetable seeds; the vitality of an enterprise.
                                                            
                                                     
                        
                                                
                        
                        
                            (biology) a hypothetical force (not physical or chemical) once thought by Henri Bergson to cause the evolution and development of organisms 
                                                            
                                                     
                        
                                                
                        
                        
                            the property of being able to survive and grow; "the vitality of a seed"