1. to acquire by force of arms; win in war: to conquer a foreign land. 2. to overcome by force; subdue; vanquish: to conquer an enemy. 3. to gain or win by effort, personal appeal, etc.: conquered the hearts of the audience. 4. to gain a victory over; surmount; master; overcome: to conquer one's fear.
1 If your heart isn't working efficiently, you may feel aortic regurgitation symptoms including fatigue and short of breath.  Aortic regurgitation can develop suddenly or over decades. It has a variety of causes, such as rheumatic fever or infection.
Bicuspid Aortic Valve Insufficiency (Regurgitation). If the cusps (leaflets) of the valve fail to come together tightly when closing, blood leaks back into the heart. Either of two terms may be used to describe this leakage: insufficiency or regurgitation.