catastrophism
noun
                                                                                                                            
                                                            ca·tas·tro·phism
                    
                                                                                                              
                                                                                                                                  kə-ˈta-strə-ˌfi-zəm 
                                                      
                                                          
            
                                
              
          
                                                      : a geologic doctrine that changes in the earth's crust have in the past been brought about suddenly by physical forces operating in ways that cannot be observed today   compare uniformitarianism                                      
                
                    
Love words? Need even more definitions?
  
  Merriam-Webster unabridged




Share