cardioverter

noun

car·​dio·​ver·​ter ˈkär-dē-ō-ˌvər-tər 

: a medical device for the administration of an electric shock in cardioversion

The cardioverter, which is fully automatic, weighs but 90 g and is inserted like a permanent pacemaker.

—John Maurice

The silver-colored, pager-size device, called an implantable cardioverter defibrillator, can speed up a slow heart and slow a racing heartbeat.

—Susan Page

Examples of cardioverter in a Sentence

Recent Examples on the Web

For weeks leading up to the execution, Black’s attorneys fought to have his implantable cardioverter defibrillator — a medical device meant to shock the heart when its rhythm becomes irregular — deactivated, per The Washington Post. —Christina Coulter, People.com, 5 Aug. 2025

Shortly thereafter, a cardioverter defibrillator product reported a vulnerability, which resulted in a data breach that affected over 1 million individuals. —Christian Espinosa, Forbes, 26 Nov. 2024

There are implantable cardioverter defibrillators that can shock a heart back to normal within eight to 10 seconds. —Theresa Gaffney, STAT, 14 Aug. 2024

Bouwmeester had an implantable cardioverter defibrillator procedure to restore his heart's normal rhythm. —Helene St. James, Detroit Free Press, 3 Jan. 2023

Word History

First Known Use

1983, in the meaning defined above

Rhymes for cardioverter

• converter
• diverter
• divertor
• inverter
• reverter

Medical Definition

cardioverter

noun

car·​dio·​ver·​ter ˈkärd-ē-ō-ˌvərt-ər 

: a device for the administration of an electric shock in cardioversion