in·​tra·​car·​di·​ac ˈin-trə-ˈkär-dē-ˌak How to pronounce intracardiac (audio)
variants or less commonly intracardial
: situated or occurring within or introduced or involving entry into the heart
an intracardiac shunt
intracardially adverb

Examples of intracardiac in a Sentence

Recent Examples on the Web The list provided by the FBI included insulin pumps, intracardiac defibrillators, and pacemakers. Annalisa Merelli, Quartz, 30 Mar. 2023 The report listed a number of medical devices that are susceptible to cyber attacks, including insulin pumps, intracardiac defibrillators, mobile cardiac telemetry and pacemakers. Jennifer Korn, CNN, 29 Mar. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'intracardiac.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1876, in the meaning defined above

Time Traveler
The first known use of intracardiac was in 1876

Dictionary Entries Near intracardiac

Cite this Entry

“Intracardiac.” Dictionary, Merriam-Webster, Accessed 29 Feb. 2024.

Medical Definition


in·​tra·​car·​di·​ac -ˈkärd-ē-ˌak How to pronounce intracardiac (audio)
variants also intracardial
: situated within, occurring within, introduced into, or involving entry into the heart
intracardiac surgery
an intracardiac catheter
intracardially adverb
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