Definition of tricuspid valve
: a valve of three flaps that prevents reflux of blood from the right ventricle to the right atrium
First Known Use of tricuspid valve
Medical Definition of tricuspid valve
: a valve that is situated at the opening of the right atrium of the heart into the right ventricle and that resembles the mitral valve in structure but consists of three triangular membranous flaps—called also right atrioventricular valve
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