a needed instrument in an automobile
                                                            
                                                     
                        
                                                
                        
                        
                            an instrument in a vehicle for telling its speed
                                                            
                                                     
                        
                                                
                        
                        
                            Device on the instrument panel to display current vehicle speed.
                                                            
                                                     
                        
                                                
                        
                        
                            An instrument, usually dash mounted, used to measure the speed of a vehicle.
                                                            
                                                     
                        
                                                
                        
                        
                            A speedometer is a vehicle instrument that measures the instantaneous speed.