In cardiology, an<unk>  is a low-pitched rumbling heart murmur which is best heard at the cardiac apex. It can be a mid-diastolic or presystolic murmur It is associated with severe aortic regurgitation, although the role of this sign in clinical practice has been questioned.
Austin Flint murmur
Carey Coombs murmur
Still's murmur
Graham Steell murmur
Third heart sound
Heart click
Cabot–Locke murmur
Grand Rounds