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

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

From Barron's • Sep. 26, 2025

"They can practice new surgical techniques for repairing or replacing the tricuspid valve on our model before performing them on actual patients."

From Science Daily • Dec. 8, 2023

When a patient is on the operating table having surgery to repair their tricuspid valve - as I did in August 2020 - the medical team decides whether they also need a Glenn.

From BBC • Apr. 28, 2023

Now the medical device company Abbott is reporting results from a clinical trial of a treatment that involves clipping the floppy tricuspid valve to make it smaller and better able to function.

From New York Times • Mar. 4, 2023

The tricuspid valve at once closes, and blocks the way backward.

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