to subject to a process of vaporization and subsequent condensation, as for purification or concentration.    
                                            
    2.
    
        to extract the volatile components of by distillation; transform by distillation.     
                                            
    3.
    
        to concentrate, purify, or obtain by or as by distillation:                 to distill whiskey from mash.
                
                                            
    4.
    
        to remove by distillation (usually followed by off or out):                 to distill out impurities.