petrochemical
noun
                                                                                                                            
                                                            pet·ro·chem·i·cal
                    
                                                                                                              
                                                                                                                                  ˌpe-trō-ˈke-mi-kəl  
                                                      
                                                          
            
                                
              
          
                                                      : a chemical isolated or derived from petroleum or natural gas                                      
                
                    
Love words? Need even more definitions?
  
  Merriam-Webster unabridged




Share