car·di·ac
ˈkär-dē-ˌak 
1
a
: of, relating to, situated near, or acting on the heart
b
: of or relating to the cardia of the stomach
2
: of, relating to, or affected with heart disease
cardiac patients
: a person with heart disease
Examples of cardiac in a Sentence
Recent Examples on the Web
Allison Aubrey, NPR, 17 Dec. 2025
Casa added that the cool first, transport second protocol is just like using an AED for a cardiac event.
—Erin Hassanzadeh, CBS News, 17 Dec. 2025
Mary Kekatos, ABC News, 1 Dec. 2025
Today, the hospital has 344 beds and various specialties including cardiac, cancer, neurosciences, orthopedics and women's and children's care, as well as 24-hour emergency services.
—Lauren Giella, MSNBC Newsweek, 3 Nov. 2025
See All Example Sentences for cardiac
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Adjective
The risk of having a heart attack or stroke rises during the holiday season, with a spike in cardiac deaths between Christmas and New Year's.
—Allison Aubrey, NPR, 17 Dec. 2025
Casa added that the cool first, transport second protocol is just like using an AED for a cardiac event.
—Erin Hassanzadeh, CBS News, 17 Dec. 2025
Noun
Additionally, Trump's cardiac scan did not show abnormalities in the heart or major vessels, according to Barbabella, and his heart chambers were described as normal in size with no signs of inflammation or clotting.
—Mary Kekatos, ABC News, 1 Dec. 2025
Today, the hospital has 344 beds and various specialties including cardiac, cancer, neurosciences, orthopedics and women's and children's care, as well as 24-hour emergency services.
—Lauren Giella, MSNBC Newsweek, 3 Nov. 2025
See All Example Sentences for cardiac
Cite this Entry
“Cardiac.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cardiac. Accessed 21 Dec. 2025.
Copy CitationMedical Definition
cardiac
1 of 2 adjective
car·di·ac
ˈkärd-ē-ˌak
1
a
: of, relating to, situated near, or acting on the heart
b
: of or relating to the cardia of the stomach
2
: of, relating to, or affected with heart disease
cardiac
2 of 2 noun
: an individual with heart disease
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