pulmonary vein

noun

Definition of pulmonary vein 

: a valveless vein that returns oxygenated blood from the lungs to the heart

Examples of pulmonary vein in a Sentence

Recent Examples on the Web

In people who have this condition, the pulmonary veins, which drain blood from the lungs back into the left atrium, get irritable and start making the heart contract maniacally. Jacqueline Detwiler, Popular Mechanics, "This Pro Skydiver Was Invincible—Until his Heart Stopped Beating Regularly," 22 June 2018 The larger valves cannot be placed in anatomic position, and that can lead to clots and obstruct blood flow to other parts of the heart or pulmonary veins. Alexia Elejalde-ruiz, chicagotribune.com, "FDA approves world's smallest mechanical heart valve, made by Abbott, for use in infants and toddlers," 8 Mar. 2018 An urgent surgery showed a severe wound to the left pulmonary vein. Erin Jensen, USA TODAY, "What happened the day Princess Diana died: A timeline," 31 Aug. 2017

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

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First Known Use of pulmonary vein

1704, in the meaning defined above

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The first known use of pulmonary vein was in 1704

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More Definitions for pulmonary vein

pulmonary vein

noun

Medical Definition of pulmonary vein 

: any of usually four veins comprising two from each lung that return oxygenated blood from the lungs to the superior part of the left atrium, that may include three veins from the right lung if the veins from all three lobes of the right lung remain separate, and that may include a single trunk from the left lung if its major veins unite before emptying into the left atrium

More from Merriam-Webster on pulmonary vein

Britannica.com: Encyclopedia article about pulmonary vein

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