aortic bulb

n.

The dilated first part of the aorta containing the aortic semilunar valves and the aortic sinuses.

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Nearby words

aortalgia, aortic arch, aortic arch syndrome, aortic atresia, aortic body, aortic bulb, aortic foramen, aortic insufficiency, aortic murmur, aortic notch, aortic ostium

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.