excitative
adjective
                                                                                                                            
                                                            ex·cit·ative
                    
                                                                                                              
                                                                                                                                  ik-ˈsī-tə-tiv 
                                                      
                                                          
            
                                
              
          
                                                      : tending to induce excitation (as of a neuron)                                      
              
                             
excitative substances
                         
                
                    Love words? Need even more definitions?
  
  Merriam-Webster unabridged




Share