polemic
noun
                                                                                                                            
                                                            po·lem·ic
                    
                                                                                                              
                                                                                                                                  pə-ˈle-mik  
                                                      
                                                          
            1
                    
        a
    
          
                                          
              
          
                                                      : an aggressive attack on or refutation of the opinions or principles of another                                      
                
                    
        b
    
          
                                          
              
          
                                                      : the art or practice of disputation or controversy                                      
                
                  —usually used in plural but singular or plural in construction
    
                
                    
2
                    
                                          
              
          
                                                      : an aggressive controversialist : disputant                                      
                
                    
Love words? Need even more definitions?
  
  Merriam-Webster unabridged




Share