• synonyms


noun, plural a·or·tas, a·or·tae [ey-awr-tee] /eɪˈɔr ti/. Anatomy.
  1. the main trunk of the arterial system, conveying blood from the left ventricle of the heart to all of the body except the lungs.
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Origin of aorta

1570–80; < Medieval Latin < Greek aortḗ the great artery, literally, something hung, carried; akin to aeírein to lift, carry
Related formsa·or·tic, a·or·tal, adjectivepost·a·or·tic, adjectivepre·a·or·tic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for aortal

Historical Examples

  • One of these is the probability of the aortal tissues pressing upon the weapon relaxing their hold and allowing the blade to slip.

    The Ape, the Idiot &amp; Other People

    W. C. Morrow

  • The irregularity of the pulse affords some reason to suspect disorder of the aortal valves, which is not yet very considerable.

British Dictionary definitions for aortal


noun plural -tas or -tae (-tiː)
  1. the main vessel in the arterial network, which conveys oxygen-rich blood from the heart to all parts of the body except the lungs
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Derived Formsaortic or aortal, adjective

Word Origin

C16: from New Latin, from Greek aortē, literally: something lifted, from aeirein to raise
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for aortal



1570s, from Medieval Latin aorta, from Greek aorte, term applied by Aristotle to the great artery of the heart, literally "what is hung up," from aeirein "to lift, heave, raise," of uncertain origin; related to the second element in meteor. Used earlier by Hippocrates of the bronchial tubes. Related: Aortal; aortic.

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Online Etymology Dictionary, © 2010 Douglas Harper

aortal in Medicine


n. pl. a•or•tas
  1. The large artery that is the main trunk of the systemic arterial system, arising from the base of the left ventricle, ending at the left side of the body of the fourth lumbar vertebra, dividing to form the right and left common iliac arteries, and whose parts are the ascending aorta, the aortic arch, and the descending aorta.
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Related formsa•ortal null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

aortal in Science


Plural aortas aortae (ā-ôr)
  1. The main artery of the circulatory system, arising from the left ventricle of the heart in mammals and birds and carrying blood with high levels of oxygen to all the arteries of the body except those of the lungs.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

aortal in Culture



The main blood vessel of the body; it carries blood from the left side of the heart to other arteries throughout the body. (See circulatory system.)

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The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.