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.
Various research groups began publishing papers linking mitochondrial biology to everything from memory formation and depression to Alzheimer’s and heart disease. Rachel Nuwer, Quanta Magazine, 17 July 2026 Those with asthma, heart disease or other respiratory conditions, along with young children, older adults and pregnant women, are at higher risk, officials said. Christopher Scarglato, Baltimore Sun, 17 July 2026 Those with underlying health conditions like asthma, COPD, heart disease, diabetes, chronic kidney disease or who are pregnant need to be extra cautious about breathing in wildfire smoke. ABC News, 17 July 2026 The obesity drug manufacturers say the medicines can reduce medical expenses by preventing other costly conditions such as diabetes and heart disease, but data don’t yet show such reductions, PwC said. Melody Petersen, Los Angeles Times, 16 July 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

Browse Nearby Words

Cite this Entry

“Heart disease.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heart%20disease. Accessed 22 Jul. 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

Love words? Need even more definitions?

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

More from Merriam-Webster