Meaning of ATRIOVENTRICULAR VALVE

WordNet Dictionary
	Definition:		[n]  either of two heart valves through which blood flows from the atria to the ventricles; prevents return of blood to the atrium
	See Also:		bicuspid valve, cardiac valve, heart valve, left atrioventricular valve, mitral valve, papillary muscle, right atrioventricular valve, tricuspid valve