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heart block

American  

noun

Pathology.
  1. a defect in the electrical impulses of the heart resulting in any of various arrhythmias or irregularities in the heartbeat.


heart block British  

noun

  1. Also called: Adams-Stokes syndrome.   atrioventricular block.  impaired conduction or blocking of the impulse that regulates the heartbeat, resulting in a lack of coordination between the beating of the atria and the ventricles

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of heart block

First recorded in 1900–05

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As part of the campaign, George will continue to swap stories with other people on red benches around the UK about their heart block experiences.

From BBC

But later analysis concluded the ECG identified a complete heart block, also known as a third-degree heart block, the most serious kind.

From BBC

It later emerged the ECG showed signs of a "complete heart block" which can lead to sudden cardiac death.

From BBC

In a video statement, Dr. Eyal Nof said that the heart monitor had sounded an alert late Saturday after detecting a condition called heart block.

From Seattle Times

THE FACTS: In October, the FAA widened the acceptable parameters it uses when screening pilots for a specific heart condition called heart block, or AV block.

From Seattle Times