What does Aortic valve, bicuspid mean?

Aortic valve, bicuspid meaning in Medical Dictionary

while the normal aortic device inside heart has actually three flaps (cusps) that open and close, a bicuspid valve has just two. There may be no signs in youth, but in time the device can become stenotic (narrowed), making it more difficult for blood to feed it, or perhaps the valve may start to allow blood leak backwards through device (regurgitate). Treatment is dependent upon the way the valve is working and in general problem of the affected individual.