from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a semilunar valve between the left ventricle and the aorta; prevents blood from flowing from the aorta back into the heart
Sorry, no etymologies found.
Autopsy showed caseous nodules in lung, coronary and generalized arteriosclerosis (including moderate basal cerebral), mitral and aortic stenosis (the aortic valve also calcified).