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The Heart of Cardiology
The root card- (closely related to cord) shows up in many heart-related words. Cardiologists frequently find themselves studying cardiograms, the charts of heart activity, made by machines called cardiographs. Heart attacks, and deaths caused by them, have both declined as a result of better medical emergency procedures, cholesterol-lowering drugs, and a decline in smoking. But the factors likely to actually improve heart health, such as better diets and more cardiovascular exercise (exercise, such as running, that improves the heart and blood vessels), haven't made any progress at all. So we should all be prepared to perform cardiopulmonary resuscitation (an emergency procedure done on someone whose heart has stopped, to get the heart and lungs working again).
Examples of cardiology in a Sentence
Darshak Sanghavi, STAT, 3 June 2026
Riyaz Patel, the co-author on the trial and a cardiologist at Barts Health NHS Trust and professor of cardiology at University College London, agreed.
—Beth Mole, ArsTechnica, 28 May 2026
And perhaps surprisingly, one of the clearest proving grounds for this evolution isn’t oncology or cardiology.
—Dr. Peter Fotinos, Forbes.com, 27 May 2026
Rupert is currently in the care of neurology, respiratory, cardiology, physiotherapy, speech and language, dietetic, hospice and community nurse care at two different hospitals.
—Vanessa Etienne, PEOPLE, 25 May 2026
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Cite this Entry
“Cardiology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cardiology. Accessed 17 Jun. 2026.
Copy CitationMedical Definition
cardiology
noun
