tricuspid valve

American

noun

Anatomy.

the valve, consisting of three triangular flaps of tissue between the right auricle and ventricle of the heart, that keeps blood from flowing back into the auricle.

tricuspid valve Scientific

A valve of the heart, usually having three cusps, that is located between the right atrium and right ventricle. The tricuspid valve prevents the backflow of blood to the right atrium.

Etymology

Origin of tricuspid valve

First recorded in 1660–70

Example Sentences

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See Examples For:

tricuspid valve

It is moving into other areas of cardiovascular disease, such as mitral valve replacement and tricuspid valve replacement.

From Barron's ● Sep. 26, 2025

Tricuspid regurgitation is a condition in which the tricuspid valve of the heart fails to close completely.

From Science Daily ● Apr. 9, 2024

The condition leaves the right ventricle diseased and the tricuspid valve is malformed so it leaks.

From BBC ● Apr. 28, 2023

It replaces the tricuspid valve by threading a new valve into the heart, pushing aside the old in a manner similar to a method called transcatheter aortic valve replacement.

From New York Times ● Mar. 4, 2023

Gradually enlarge the opening until the chordæ tendineæ and the flaps of the tricuspid valve are seen.

From A Practical Physiology by Blaisdell, Albert F.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023