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

Example Sentences

Recent Examples on the Web Next, doctors would look for structural problems, such as hypertrophic cardiomyopathy or any increased thickness or dilation of the heart, along with any valvular problems. ABC News, 13 Jan. 2023 Hypertrophic cardiomyopathy is when the walls of a person’s heart thicken and can cause sudden arrhythmia with no prior symptoms. Wendy Tzou, Fortune, 4 Jan. 2023 Hypertrophic cardiomyopathy is when the walls of a person’s heart thicken and can cause sudden arrhythmia with no prior symptoms. Wendy Tzou, The Conversation, 3 Jan. 2023 Acute arsenic victims typically die from massive fluid loss, but some experience renal failure, pulmonary edema, seizures or cardiomyopathy. Emilie Le Beau Lucchesi, Discover Magazine, 26 Mar. 2022 The 1990 death of college basketball phenom Hank Gathers from hypertrophic cardiomyopathy brought more awareness to the condition. Tracy Swartz, Chicago Tribune, 14 Aug. 2022 Cats with hypertrophic cardiomyopathy also tend to form clots. Sumeet Kulkarni, Los Angeles Times, 27 July 2022 Handler said her cardiomyopathy was caused by stress. Serena Coady, SELF, 4 May 2022 This stress can lead to rapid-onset cardiomyopathy, or weakening of the heart muscle. Serena Coady, SELF, 9 Feb. 2022 See More

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

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 1 Feb. 2023.

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

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