Definition: the dilated first part of the aorta containing the aortic semilunar valves and the aortic sinuses, especially evident via angiography (aortogram).
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.