coronary artery

noun

: either of two arteries that arise one from the left and one from the right side of the aorta immediately above the semilunar valves and supply the tissues of the heart itself

Examples of coronary artery in a Sentence

Recent Examples on the Web
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Breathing in cold air constricts blood vessels, which elevates blood pressure and narrows coronary arteries, increasing the risk of cardiac strain. Kaycee Sloan, Cincinnati Enquirer, 23 Jan. 2026 This recommendation is backed by a 2001 study, which found that about 85% of adults over the age of 50 already experience atherosclerosis, which can lead to coronary artery disease. Isa Almeida, Oklahoman, 23 Jan. 2026 Cold air can constrict blood vessels, disproportionately raising blood pressure and constricting coronary arteries. Greta Cross, USA Today, 21 Jan. 2026 One 2024 review found 8-12 weeks of resistance training may improve blood pressure and body composition, in turn lowering the risk of coronary artery disease (a common type of heart disease). Jenessa Connor, Health, 17 Jan. 2026 See All Example Sentences for coronary artery

Word History

First Known Use

1741, in the meaning defined above

Time Traveler
The first known use of coronary artery was in 1741

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Cite this Entry

“Coronary artery.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coronary%20artery. Accessed 28 Jan. 2026.

Kids Definition

coronary artery

noun
: either of the two arteries that arise from the aorta and supply the tissues of the heart

Medical Definition

coronary artery

noun
: either of two arteries that arise one from the left and one from the right side of the aorta immediately above the semilunar valves and supply the tissues of the heart itself

More from Merriam-Webster on coronary artery

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