A drum made of thin copper in the form of a hemispherical kettle, with parchment stretched over the mouth of it.
                                                            
                                                     
                        
                                                
                        
                        
                            An informal social party at which a light collation is offered, held in the afternoon or early evening.  Cf. Drum, n., 4 and 5.
                                                            
                                                     
                        
                                                
                        
                        
                            a large hemispherical brass or copper percussion instrument with a drumhead that can be tuned by adjusting the tension on it