planetology
noun
                                                                                                                            
                                                            plan·et·ol·o·gy
                    
                                                                                                              
                                                                                                                                  ˌpla-nə-ˈtä-lə-jē  
                                                      
                                                          
            
            
               plural planetologies            
        
    
                                
              
          
                                                      : a branch of astronomy that deals with the condensed matter of the solar system and especially with the planets and their moons                                      
                
                    
Love words? Need even more definitions?
  
  Merriam-Webster unabridged




Share