aor·​ta | \ ā-ˈȯr-tə How to pronounce aorta (audio) \
plural aortas or aortae\ -​tē How to pronounce aortae (audio) \

Definition of aorta

: the great arterial trunk that carries blood from the heart to be distributed by branch arteries through the body — see heart illustration

Keep scrolling for more

Other Words from aorta

aortic \ -​ˈȯr-​tik How to pronounce aortic (audio) \ adjective

Examples of aorta in a Sentence

Recent Examples on the Web

In both the chest and the abdomen, the aorta can progressively weaken and enlarge, which creates the aneurysm. Froedtert & The Medical College Of Wisconsin, Milwaukee Journal Sentinel, "The “silent-killer” — know your risks for an abdominal aortic aneurysm," 12 June 2019 The 60-year-old man, from Melbourne, Australia, went to the hospital for emergency surgery in 2018 to repair a tear in the inner layer of the wall of his aorta. Christina Oehler,, "Man's Chest Caught on Fire During Surgery—Here's How That Happens," 4 June 2019 The Delaware Aqueduct is to the city what the aorta is to our circulatory systems: a necessary channel to keep everything running. Washington Post, "Fixing a massive NYC plumbing leak, 55 stories underground," 20 June 2018 Belcher’s surgeons decided on the best way to proceed thanks to a 3-D model of her aorta. Erin Blakemore, Washington Post, "Surgeons are using 3-D-printed organs to figure out the best way to operate," 11 June 2018 When TriHealth doctors found a growing bulge in Fieglein’s abdominal aorta in 2015, Fieglein’s lifestyle and his life were put in jeopardy. Trihealth Dailyhealthwire,, "Gut Check: TriHealth vascular surgeons lead the way with minimally invasive abdominal aortic aneurysm surgery," 19 Feb. 2018 The cause was dementia and a torn aorta, said a daughter, Tamera Van Ness. Washington Post, "The story must be told.," 3 Mar. 2018 That could have snapped the girl's lower vertebrae and punctured her aorta, the medical examiner said, according to Ashendorf. Michael Gordon, charlotteobserver, "The mom's boyfriend said her son might grow up to be gay. Now he's accused of his murder.," 19 June 2018 The twins were conjoined at their abdomen and shared organs such as the stomach and part of the aorta, a crucial artery that runs from the heart down to the abdomen. Rory Smith, Cnn Anna Cardovillis, CNN, "Tanzanian conjoined twins die at age 21," 4 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aorta.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of aorta

1543, in the meaning defined above

History and Etymology for aorta

New Latin, from Greek aortē, from aeirein to lift

Keep scrolling for more

Learn More about aorta

Dictionary Entries near aorta





aortic arch



Statistics for aorta

Last Updated

23 Jun 2019

Look-up Popularity

Time Traveler for aorta

The first known use of aorta was in 1543

See more words from the same year

Keep scrolling for more

More Definitions for aorta



English Language Learners Definition of aorta

: the large artery that brings blood from the heart to the rest of the body


aor·​ta | \ ā-ˈȯr-tə How to pronounce aorta (audio) \

Kids Definition of aorta

: the main artery that carries blood from the heart for distribution to all parts of the body


aor·​ta | \ ā-ˈȯrt-ə How to pronounce aorta (audio) \
plural aortas or aortae\ -​ē How to pronounce aortae (audio) \

Medical Definition of aorta

: the large arterial trunk that carries blood from the heart to be distributed by branch arteries through the body

Keep scrolling for more

More from Merriam-Webster on aorta

Spanish Central: Translation of aorta

Nglish: Translation of aorta for Spanish Speakers

Britannica English: Translation of aorta for Arabic Speakers Encyclopedia article about aorta

Comments on aorta

What made you want to look up aorta? Please tell us where you read or heard it (including the quote, if possible).


food or victuals

Get Word of the Day daily email!

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!