Anat.
a semilunar valve between the aorta and the left ventricle of the heart that prevents the blood from flowing back into the left ventricle.
Anat.
a semilunar valve between the aorta and the left ventricle of the heart that prevents the blood from flowing back into the left ventricle.
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012