Medical Dictionary

eustachian valve


eustachian valve

noun, often capitalized E

Definition of EUSTACHIAN VALVE

:  a crescent-shaped fold of the lining membrane of the heart at the entrance of the inferior vena cava that directs the blood through the foramen ovale to the left atrium in the fetus but is rudimentary and functionless in the adult
February 28, 2015
pontificate Hear it
To speak pompously or dogmatically
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears