Definition of "cardioversion" []

• The restoration of the heartbeat to normal functioning by the application of electrical shock or by the use of medication. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "To correct your condition, doctors may be able to reset your heart to its regular rhythm (sinus rhythm) using a procedure called cardioversion, depending on the underlying cause of atrial fibrillation and how long you've had it."
• "A well-placed source tells Us the actor, 57, underwent "cardioversion," a procedure that converts an abnormal heart rhythm back to a normal rhythm, on Wednesday night."
• "Treatments include drugs and cardioversion, a procedure that delivers an electrical shock to the heart into a normal rhythm as well as ablation, mostly with devices that aren't specifically approved by the FDA to treat the condition."