car·​dio·​my·​op·​a·​thy ˈkär-dē-ō-(ˌ)mī-ˈä-pə-thē How to pronounce cardiomyopathy (audio)
plural cardiomyopathies
: any of several structural or functional diseases of heart muscle marked especially by hypertrophy and obstructive damage to the heart

Examples of cardiomyopathy in a Sentence

Recent Examples on the Web After being diagnosed with cardiomyopathy a decade ago, which impairs the heart's ability to pump efficiently, Harwell has suffered medical setbacks including heart failure and acute Wernicke's encephalopathy, which impacts motor functions such as his speech and memory. Shania Russell,, 3 Sep. 2023 Dilated cardiomyopathy is a condition in which the heart’s ability to pump blood is limited, while myocarditis is inflammation of the heart muscle. Rania Aniftos, Billboard, 19 Dec. 2023 The study enrolled about 300 people with obstructive hypertrophic cardiomyopathy, or HCM, a hereditary disorder that restricts blood flow. Damian Garde Reprints, STAT, 27 Dec. 2023 The most common postmortem findings among the athletes either found no specific reason for the sudden cardiac arrest or found that idiopathic left ventricular hypertrophy (the thickening of the heart's left pumping chamber) or possible cardiomyopathy (a disease of the heart muscle) were to blame. Mary Whitfill Roeloffs, Forbes, 13 Nov. 2023 It can easily be mistaken for other cardiomyopathies, Dr. Gerhard says, and heart-muscle thickening (for any reason) is often just attributed to elevated blood pressure when there could be more going on. Julia Ries, SELF, 18 Oct. 2023 Hypertrophic cardiomyopathy is a condition that's usually caused by abnormal genes in the heart muscle, according to the American Heart Association (AHA). Korin Miller,, 29 Sep. 2021 Hypertrophic cardiomyopathy, which is inherited from one parent, can be averted using pre-implant genetic diagnosis, a common I.V.F. technique. The New Yorker, 25 Sep. 2023 Smash Mouth's Steve Harwell Taking a Brief Break from Band Due to Heart Issues During the later years of his career, Harwell suffered from several health complications with 2013 diagnoses for cardiomyopathy and Wernicke encephalopathy. Alexis Jones, Peoplemag, 4 Sep. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'cardiomyopathy.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1901, in the meaning defined above

Time Traveler
The first known use of cardiomyopathy was in 1901

Dictionary Entries Near cardiomyopathy

Cite this Entry

“Cardiomyopathy.” Dictionary, Merriam-Webster, Accessed 19 Jun. 2024.

Medical Definition


car·​dio·​my·​op·​a·​thy ˈkärd-ē-ō-(ˌ)mī-ˈäp-ə-thē How to pronounce cardiomyopathy (audio)
plural cardiomyopathies
: any structural or functional disease of heart muscle that is marked especially by enlargement of the heart, by hypertrophy of cardiac muscle, or by rigidity and loss of flexibility of the heart walls and that may be idiopathic or attributable to a specific cause (such as heart valve disease, untreated high blood pressure, or viral infection)

More from Merriam-Webster on cardiomyopathy

Love words? Need even more definitions?

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