Aortic: Pertaining to the aorta, the largest artery in the body. "Aortic" is in common usage as, for example, in an abdominal aortic aneurysm. The term "aortal" has the same meaning but is rarely encountered (except in The New York Times crossword). SLIDESHOW Heart Disease: Symptoms, Signs, and Causes See Slideshow From Healthy Heart Resources Signs Psoriasis May Be Affecting Your HeartDiagnosing Hypertrophic CardiomyopathyExercising With HCM: How to Sweat Safely Featured Centers What Are the Best PsA Treatments for You?Understanding Biologics 10 Things People With Depression Wish You Knew Health Solutions From Our Sponsors Shot-Free MS Treatment Your Child and COVID-19