heart failure

noun

1
: a condition in which the heart is unable to pump blood at an adequate rate or in adequate volume
2
: cessation of heartbeat : death

Examples of heart failure 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.
At the hospital, doctors discovered fluid in his lungs and around his heart, leading to a diagnosis of severe heart failure. Nasha Smith, People.com, 1 Apr. 2025 Today underlying mRNA technology, which helped save millions of lives, prevent hospitalizations and mitigate instances of long Covid, is now also being used to tackle a wide range of diseases — bird flu, cancer, heart failure. Alex Knapp, Forbes.com, 28 Mar. 2025 Indeed, measuring body fat versus BMI erased what had appeared to be a survival benefit of obesity in a study on heart failure. Erica Sloan, SELF, 26 Mar. 2025 Her clinical and research interests are heart failure and cardiovascular disease risk in American Indians. Victor A. Lopez-Carmen, Md, Forbes, 23 Mar. 2025 See All Example Sentences for heart failure

Word History

First Known Use

1574, in the meaning defined at sense 1

Time Traveler
The first known use of heart failure was in 1574

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Cite this Entry

“Heart failure.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heart%20failure. Accessed 17 Apr. 2025.

Medical Definition

heart failure

noun
1
: a condition in which the heart is unable to pump blood at an adequate rate or in adequate volume compare angina pectoris, congestive heart failure, coronary failure, heart attack
2
: cessation of heartbeat : death

More from Merriam-Webster on heart failure

Last Updated: - Updated example sentences
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