heart disease

noun

: an abnormal condition of the heart or of the heart and circulation (such as coronary heart disease, arrhythmia, or heart-valve defect)

Examples of heart disease in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Valvular heart disease, in which one more of the heart's valves don't function properly, can make the heart work harder and, over time, lead to conditions like chest pain, fatigue, and shortness of breath. New Atlas, 14 Feb. 2026 Navalnaya said her husband exhibited no instances of heart disease before he was imprisoned. Kerry Breen, CBS News, 14 Feb. 2026 According to the American Heart Association, heart disease is responsible for about 1,905 deaths every day. Care Resource, Miami Herald, 13 Feb. 2026 Lowers the risk of heart disease. Bestreviews, Chicago Tribune, 13 Feb. 2026 See All Example Sentences for heart disease

Word History

First Known Use

1830, in the meaning defined above

Time Traveler
The first known use of heart disease was in 1830

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Cite this Entry

“Heart disease.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heart%20disease. Accessed 20 Feb. 2026.

Kids Definition

heart disease

noun
: an abnormal condition of the heart or of the heart and blood circulation

Medical Definition

heart disease

noun
: an abnormal condition of the heart or of the heart and circulation (as coronary heart disease, arrhythmia, or heart-valve defect)

More from Merriam-Webster on heart disease

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