Definition of brachygraphy:
		
		
		(n) :
		
		a tachometer that produces a graphical record of its readings; used to record the speed and duration of trips in a motor vehicle
		
	 
 
		
		
		Definition of brachygraphy:
		
		
		(n) :
		
		a tachometer that produces a graphical record of its readings; used to record the speed and duration of trips in a motor vehicle