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CARDIAC PACEMAKER
Pronunciation (US): | (GB): |
I. (noun)
Sense 1
Meaning:
A specialized bit of heart tissue that controls the heartbeat
Synonyms:
cardiac pacemaker; pacemaker; SA node; sinoatrial node
Classified under:
Hypernyms ("cardiac pacemaker" is a kind of...):
cardiac muscle; heart muscle (the muscle tissue of the heart; adapted to continued rhythmic contraction)
Context examples:
The average (mean) duration (time) of the QRS interval, obtained from a set of measurements of the QRS interval while the ventricle rhythm is controlled by an electrical impulse from a mechanical cardiac pacemaker.
(Mean QRS Duration Ventricular Paced, NCI Thesaurus)
Before you get a scan, tell your doctor if you: • Are pregnant • Have pieces of metal in your body • Have metal or electronic devices in your body, such as a cardiac pacemaker or a metal artificial joint
(MRI Scans, NIH)