car·​dio·​ver·​sion | \ ˌkär-dē-ō-ˈvər-zhən How to pronounce cardioversion (audio) \

Definition of cardioversion

: application of an electric shock in order to restore normal heartbeat

Examples of cardioversion in a Sentence

Recent Examples on the Web The condition can be treated with a procedure called electrical cardioversion to reset the heart rhythm. Aurelie Corinthios,, "Bringing Up Bates Star Alyssa Webster Undergoes Second Heart Surgery in 4 Months," 29 Aug. 2019 The participants with atrial fibrillation wore the smartwatch before and after a treatment known as cardioversion, a non-emergency procedure that shocks the heart back into a normal rhythm temporarily. Catherine Ho, San Francisco Chronicle, "Smartwatch app can detect common heart rhythm abnormality, study finds," 21 Mar. 2018 Researchers provided Apple Watches to about 50 patients with atrial fibrillation while undergoing procedures at UCSF known as cardioversions to restore normal heart rhythms. Peter Loftus, WSJ, "Smartwatch Shows Promise in Detecting Heart Problem," 21 Mar. 2018 Treatment might involve medication, a pacemaker insertion, bed rest or a cardioversion, in which an electric jolt resets the heart’s rhythm. Tara Haelle, Washington Post, "For women with congenital heart defects, having a baby can be risky," 4 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cardioversion.' 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 cardioversion

1963, in the meaning defined above

History and Etymology for cardioversion

cardi- + version (turning of an organ)

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Time Traveler for cardioversion

Time Traveler

The first known use of cardioversion was in 1963

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Cite this Entry

“Cardioversion.” Dictionary, Merriam-Webster, Accessed 2 Dec. 2020.

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More Definitions for cardioversion


car·​dio·​ver·​sion | \ -ˈvər-zhən also -shən \

Medical Definition of cardioversion

: application of an electric shock in order to restore normal heartbeat

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