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.
The fact that many women receive yearly or biennial mammograms to screen for breast cancer using this tool is especially promising considering heart disease is the leading cause of death for American women. Helen Carefoot, Flow Space, 30 Jan. 2026 An accumulation of free radicals can lead to oxidative stress, which is linked to a variety of health problems, including heart disease, cancer, and chronic obstructive pulmonary disease (COPD). Ann Pietrangelo, Verywell Health, 30 Jan. 2026 The findings come from an observational study, meaning chronotype itself does not directly cause heart disease. Michele Laufik, Martha Stewart, 30 Jan. 2026 The beverage could help protect against type 2 diabetes, liver disease, and heart disease. Emily Santora, Health, 30 Jan. 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 2 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

Last Updated: - Updated example sentences
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